question_id int32 0 11.7k | question stringlengths 14 399 | choices listlengths 4 4 | answer stringlengths 4 70 | documents stringlengths 2.83k 8.63k |
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0 | What type of organism is commonly used in preparation of foods such as cheese and yogurt? | [
"A. gymnosperms",
"B. protozoa",
"C. viruses",
"D. mesophilic organisms"
] | D. mesophilic organisms | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... |
1 | What phenomenon makes global winds blow northeast to southwest or the reverse in the northern hemisphere and northwest to southeast or the reverse in the southern hemisphere? | [
"A. centrifugal effect",
"B. muon effect",
"C. coriolis effect",
"D. tropical effect"
] | C. coriolis effect | Document 1 ::: The paper consists of single correct type questions. There are questions from high school level physics, mathematics and some questions from general astronomy.
Document 2 ::: Extratropical cyclones in meridional flows tend to be stronger and move slower. This pattern is responsible for most instances of ... |
2 | Changes from a less-ordered state to a more-ordered state (such as a liquid to a solid) are always what? | [
"A. unbalanced",
"B. exothermic",
"C. endothermic",
"D. reactive"
] | B. exothermic | Document 1 ::: The first part contains 60 multiple-choice questions. Each question has four answer choices. The questions are loosely grouped into 10 sets of 6 items; each set corresponds to a different chemistry topic.
Document 2 ::: Typically, the topics are, in order, descriptive chemistry/laboratory techniques, sto... |
3 | What is the least dangerous radioactive decay? | [
"A. gamma decay",
"B. zeta decay",
"C. alpha decay",
"D. beta decay"
] | C. alpha decay | Document 1 ::: The first three have similar half-lives, between 200 thousand and 300 thousand years; the last four have longer half-lives, in the low millions of years. Technetium-99 produces the largest amount of LLFP radioactivity. It emits beta particles of low to medium energy but no gamma rays, so has little hazar... |
4 | Kilauea in hawaii is the world’s most continuously active volcano. very active volcanoes characteristically eject red-hot rocks and lava rather than this? | [
"A. magma",
"B. carbon and smog",
"C. smoke and ash",
"D. greenhouse gases"
] | C. smoke and ash | Document 1 ::: : 715 "Gravity, geology, and the specific orbit of the moon lead to the tidal patterns of the Earth's oceans and thus to both the environment in which early life evolved and in which tsunamis bring death and destruction to countless thousands of people". : 717–718 Holmes Rolston III says nature embodies ... |
5 | When a meteoroid reaches earth, what is the remaining object called? | [
"A. meteor",
"B. comet",
"C. meteorite",
"D. orbit"
] | C. meteorite | Document 1 ::: The paper consists of single correct type questions. There are questions from high school level physics, mathematics and some questions from general astronomy.
Document 2 ::: The content within the book is written using a question and answer format. It contains some 250 questions, which The Science Teach... |
6 | What kind of a reaction occurs when a substance reacts quickly with oxygen? | [
"A. nitrogen reaction",
"B. Fluid Reaction",
"C. invention reaction",
"D. combustion reaction"
] | D. combustion reaction | Document 1 ::: The first part contains 60 multiple-choice questions. Each question has four answer choices. The questions are loosely grouped into 10 sets of 6 items; each set corresponds to a different chemistry topic.
Document 2 ::: Typically, the topics are, in order, descriptive chemistry/laboratory techniques, sto... |
7 | Organisms categorized by what species descriptor demonstrate a version of allopatric speciation and have limited regions of overlap with one another, but where they overlap they interbreed successfully?. | [
"A. ring species",
"B. surface species",
"C. fitting species",
"D. species complex"
] | A. ring species | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... |
8 | Alpha emission is a type of what? | [
"A. heat",
"B. radioactivity",
"C. light",
"D. radiation"
] | B. radioactivity | Document 1 ::: The paper consists of single correct type questions. There are questions from high school level physics, mathematics and some questions from general astronomy.
Document 2 ::: These are conceptual ranking-task questions that help the student before embarking on numerical calculations. The textbook covers ... |
9 | What is the stored food in a seed called? | [
"A. endosperm",
"B. membrane",
"C. larval",
"D. pollin"
] | A. endosperm | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... |
10 | Zinc is more easily oxidized than iron because zinc has a lower reduction potential. since zinc has a lower reduction potential, it is a more what? | [
"A. much metal",
"B. Trap metal",
"C. active metal",
"D. usually metal"
] | C. active metal | Document 1 ::: The first part contains 60 multiple-choice questions. Each question has four answer choices. The questions are loosely grouped into 10 sets of 6 items; each set corresponds to a different chemistry topic.
Document 2 ::: The NSEC contains only multiple choice questions. The questions include physical chem... |
11 | What is controlled by both genes and experiences in a given envionment? | [
"A. reflexes",
"B. animal behaviors",
"C. learned behaviors",
"D. instincts"
] | B. animal behaviors | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... |
12 | What tells you how much of the food you should eat to get the nutrients listed on the label? | [
"A. serving size",
"B. scoop size",
"C. longer size",
"D. regular size"
] | A. serving size | Document 1 ::: The first part contains 60 multiple-choice questions. Each question has four answer choices. The questions are loosely grouped into 10 sets of 6 items; each set corresponds to a different chemistry topic.
Document 2 ::: The test had 50 multiple choice questions that were to be answered in one hour. All q... |
13 | What are used to write nuclear equations for radioactive decay? | [
"A. critical symbols",
"B. radioactive symbols",
"C. nuclear symbols",
"D. trigonometric symbols"
] | C. nuclear symbols | Document 1 ::: The test had 50 multiple choice questions that were to be answered in one hour. All questions had five answer choices. Students received 1 point for every correct answer, lost ¼ of a point for each incorrect answer, and received 0 points for questions left blank. The questions covered a broad range of to... |
14 | What is controlled by regulatory proteins that bind to regulatory elements on dna? | [
"A. substance transcription",
"B. amino acids",
"C. mRNA",
"D. gene transcription"
] | D. gene transcription | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... |
15 | Boron only occurs naturally in compounds with what element? | [
"A. helium",
"B. nitrogen",
"C. carbon",
"D. oxygen"
] | D. oxygen | Document 1 ::: The first part contains 60 multiple-choice questions. Each question has four answer choices. The questions are loosely grouped into 10 sets of 6 items; each set corresponds to a different chemistry topic.
Document 2 ::: The NSEC contains only multiple choice questions. The questions include physical chem... |
16 | What organ systems link exchange surfaces with cells throughout the body? | [
"A. pulmonary",
"B. nervous",
"C. circulatory",
"D. vascular"
] | C. circulatory | Document 1 ::: NBDE I consists of 400 multiple choice questions emphasizing basic sciences: 1. Human Anatomy, Embryology, and Histology 2. Biochemistry and Physiology 3.
Document 2 ::: Humans have the overall body plan of a mammal. Humans have a head, neck, trunk (which includes the thorax and abdomen), two arms and ha... |
17 | What occurs when the immune system attacks a harmless substance that enters the body from the outside? | [
"A. nausea",
"B. panic attack",
"C. allergy",
"D. plague"
] | C. allergy | Document 1 ::: ": 46 She also contended that the two studies that had failed to replicate the Uhlmann paper's results were flawed for two reasons: because they looked at cells of children with autism rather than in their GI tract, and because they did not test children with autism with gastrointestinal dysfunction. : 6... |
18 | Fertilization is the union of a sperm and egg, resulting in the formation of what? | [
"A. a cytoplasm",
"B. a nuclei",
"C. a bacteriophage",
"D. a zygote"
] | D. a zygote | Document 1 ::: In biology, polyspermy describes the fertilization of an egg by more than one sperm. Diploid organisms normally contain two copies of each chromosome, one from each parent. The cell resulting from polyspermy, on the other hand, contains three or more copies of each chromosome—one from the egg and one eac... |
19 | The plants alternation between haploid and diploud generations allow it to do what? | [
"A. reproduce asexually and sexually",
"B. reproduce asexually and biologically",
"C. reproduce asexually and simultaneously",
"D. reproduce sexually and autonomously"
] | A. reproduce asexually and sexually | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... |
20 | Most of the chemical reactions in the body are facilitated by what? | [
"A. proteins",
"B. vitamins",
"C. enzymes",
"D. carbohydrates"
] | C. enzymes | Document 1 ::: The first part contains 60 multiple-choice questions. Each question has four answer choices. The questions are loosely grouped into 10 sets of 6 items; each set corresponds to a different chemistry topic.
Document 2 ::: The NSEC contains only multiple choice questions. The questions include physical chem... |
21 | What is the termination of a pregnancy in progress called? | [
"A. delivery",
"B. abortion",
"C. contraception",
"D. miscarriage"
] | B. abortion | Document 1 ::: NBDE I consists of 400 multiple choice questions emphasizing basic sciences: 1. Human Anatomy, Embryology, and Histology 2. Biochemistry and Physiology 3.
Document 2 ::: The test had 50 multiple choice questions that were to be answered in one hour. All questions had five answer choices. Students receive... |
22 | Cutting down on the use of chemical fertilizers and preserving wetlands are ways to prevent what "unlivable" regions in bodies of water? | [
"A. inhabitable zones",
"B. dead zones",
"C. hostile zones",
"D. fresh zones"
] | B. dead zones | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... |
23 | Which muscles allow your fingers to also make precise movements for actions? | [
"A. fine movement muscles",
"B. paired muscles",
"C. intrinsic muscles",
"D. motoric muscles"
] | C. intrinsic muscles | Document 1 ::: Most mathematics questions, or calculation questions from subjects such as chemistry, physics, or economics employ a style which does not fall into any of the above categories, although some papers, notably the Maths Challenge papers in the United Kingdom employ multiple choice. Instead, most mathematics... |
24 | Testing what usually requires making observations or performing experiments? | [
"A. homeostasis",
"B. hypothesis",
"C. variables",
"D. conclusion"
] | B. hypothesis | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... |
25 | This sharing of electrons produces what is known as a covalent bond. covalent bonds are ~20 to 50 times stronger than what? | [
"A. van der waals interactions",
"B. gravitational pull",
"C. Mendelian systems",
"D. Newton's third law"
] | A. van der waals interactions | Document 1 ::: In organic chemistry, covalent bonding is much more common than ionic bonding. Covalent bonding also includes many kinds of interactions, including σ-bonding, π-bonding, metal-to-metal bonding, agostic interactions, bent bonds, three-center two-electron bonds and three-center four-electron bonds. The ter... |
26 | Water molecules move about continuously due to what type of energy? | [
"A. seismic",
"B. optical",
"C. potential",
"D. kinetic"
] | D. kinetic | Document 1 ::: These are conceptual ranking-task questions that help the student before embarking on numerical calculations. The textbook covers most of the basic topics in physics: Mechanics Waves Thermodynamics Electromagnetism Optics Special RelativityThe extended edition also contains introductions to topics such a... |
27 | A small scale version of what type of map displays individual rock units? | [
"A. polar map",
"B. geologic map",
"C. seismic map",
"D. geographic map"
] | B. geologic map | Document 1 ::: The test had 50 multiple choice questions that were to be answered in one hour. All questions had five answer choices. Students received 1 point for every correct answer, lost ¼ of a point for each incorrect answer, and received 0 points for questions left blank. The questions covered a broad range of to... |
28 | What is defined as a change in the inherited traits of organisms over time? | [
"A. variation",
"B. generation",
"C. evolution",
"D. divergence"
] | C. evolution | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... |
29 | What hormone, which is associated with luteinizing hormone and male sexuality, helps bring about physical changes in puberty? | [
"A. testosterone",
"B. epinephrine",
"C. steroids",
"D. estrogen"
] | A. testosterone | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... |
30 | Where do angiosperms produce seeds in flowers? | [
"A. cones",
"B. germs",
"C. testes",
"D. ovaries"
] | D. ovaries | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... |
31 | In order to create food, what do photosynthetic protists use? | [
"A. light energy",
"B. thermal energy",
"C. hydrocarbons",
"D. decayed matter"
] | A. light energy | Document 1 ::: The NSEC contains only multiple choice questions. The questions include physical chemistry, organic chemistry, and inorganic chemistry. The stress on biochemistry is more in the NSEC than in the typical school syllabi.
Document 2 ::: The first part contains 60 multiple-choice questions. Each question has... |
32 | What type of vertebrates are birds? | [
"A. invertebrates",
"B. exothermic",
"C. endothermic tetrapod",
"D. epidermal tetrapod"
] | C. endothermic tetrapod | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... |
33 | What type of ions do ionic compounds contain? | [
"A. positive and charged",
"B. regular and irregular",
"C. positive and negative",
"D. negative and neutal"
] | C. positive and negative | Document 1 ::: The NSEC contains only multiple choice questions. The questions include physical chemistry, organic chemistry, and inorganic chemistry. The stress on biochemistry is more in the NSEC than in the typical school syllabi.
Document 2 ::: The first part contains 60 multiple-choice questions. Each question has... |
34 | All living things need air and this to survive? | [
"A. water",
"B. ecosystem",
"C. stimuli",
"D. habitat"
] | A. water | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... |
35 | The cells of all eukarya have a what? | [
"A. chloroplast",
"B. nucleus",
"C. necrosis",
"D. epidermis"
] | B. nucleus | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... |
36 | What type of plate boundaries produce huge mountain ranges in the ocean basin? | [
"A. tractional",
"B. coherent",
"C. parallel",
"D. divergent"
] | D. divergent | Document 1 ::: The test had 50 multiple choice questions that were to be answered in one hour. All questions had five answer choices. Students received 1 point for every correct answer, lost ¼ of a point for each incorrect answer, and received 0 points for questions left blank. The questions covered a broad range of to... |
37 | Interstitial carbides are produced by the reaction of most transition metals at high temperatures with what element? | [
"A. hydrogen",
"B. nitrogen",
"C. carbon",
"D. oxygen"
] | C. carbon | Document 1 ::: The first part contains 60 multiple-choice questions. Each question has four answer choices. The questions are loosely grouped into 10 sets of 6 items; each set corresponds to a different chemistry topic.
Document 2 ::: Typically, the topics are, in order, descriptive chemistry/laboratory techniques, sto... |
38 | Fungus-like protist saprobes play what role in a food chain and are specialized to absorb nutrients from nonliving organic matter, such as dead organisms or their wastes? | [
"A. aphids",
"B. Soil",
"C. fluxes",
"D. decomposers"
] | D. decomposers | Document 1 ::: Ask A Biologist is a pre-kindergarten through high school program dedicated to answering questions from students, their teachers, and parents. The primary focus of the program is to connect students and teachers with working scientists through a question and answer Web e-mail form. The companion website ... |
39 | What are the sites of protein synthesis or assembly? | [
"A. chloroplasts",
"B. plasma",
"C. ribosomes",
"D. chromosomes"
] | C. ribosomes | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... |
40 | What must replicate in the cell cycle before meiosis i takes place? | [
"A. meiotic fluid",
"B. dna",
"C. cell walls",
"D. sperm"
] | B. dna | Document 1 ::: Q1 General biology Q2 Cytology Q3 Genetics Q4 Physiology Q5 Biochemistry Q6 Biophysics Q7 Molecular biology Q8 Bioengineering Q9 Zoology and botany
Document 2 ::: The first part contains 60 multiple-choice questions. Each question has four answer choices. The questions are loosely grouped into 10 sets of... |
41 | What phenomenon is primarily the result of plate tectonic motions? | [
"A. volcanoes",
"B. tsunamis",
"C. earthquake",
"D. eruption"
] | C. earthquake | Document 1 ::: : 715 "Gravity, geology, and the specific orbit of the moon lead to the tidal patterns of the Earth's oceans and thus to both the environment in which early life evolved and in which tsunamis bring death and destruction to countless thousands of people". : 717–718 Holmes Rolston III says nature embodies ... |
42 | What is a group of neuron cell bodies in the periphery called? | [
"A. ganglion",
"B. gangism",
"C. crystals",
"D. organism"
] | A. ganglion | Document 1 ::: NBDE I consists of 400 multiple choice questions emphasizing basic sciences: 1. Human Anatomy, Embryology, and Histology 2. Biochemistry and Physiology 3.
Document 2 ::: The first part contains 60 multiple-choice questions. Each question has four answer choices. The questions are loosely grouped into 10 ... |
43 | Where does most of our food come from? | [
"A. lichen",
"B. angiosperms",
"C. microbes",
"D. gymnosperms"
] | B. angiosperms | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... |
44 | Gases are most ideal at high temperature and what pressure? | [
"A. absolute",
"B. stable",
"C. high",
"D. low"
] | D. low | Document 1 ::: Conceptual problems are often formulated as multiple-choice questions, making them easy to use during in-class discussions, particularly when utilizing active learning, peer instruction, and audience response. An example of a conceptual question in undergraduate thermodynamics is provided below: During a... |
45 | Hard igneous rocks and easily dissolved sedimentary rocks respond very differently to what natural force? | [
"A. sunlight",
"B. gravity",
"C. weathering",
"D. evaporation"
] | C. weathering | Document 1 ::: : 715 "Gravity, geology, and the specific orbit of the moon lead to the tidal patterns of the Earth's oceans and thus to both the environment in which early life evolved and in which tsunamis bring death and destruction to countless thousands of people". : 717–718 Holmes Rolston III says nature embodies ... |
46 | A diet rich in calcium and what vitamin may reduce the risk of osteoporosis and related bone fractures? | [
"A. vitamin d",
"B. niacin",
"C. vitamin C",
"D. vitamin A"
] | A. vitamin d | Document 1 ::: The first part contains 60 multiple-choice questions. Each question has four answer choices. The questions are loosely grouped into 10 sets of 6 items; each set corresponds to a different chemistry topic.
Document 2 ::: The NSEC contains only multiple choice questions. The questions include physical chem... |
47 | How many people die from air pollution each year? | [
"A. 5 million",
"B. 14 million",
"C. 17 million",
"D. 22 million"
] | D. 22 million | Document 1 ::: The test had 50 multiple choice questions that were to be answered in one hour. All questions had five answer choices. Students received 1 point for every correct answer, lost ¼ of a point for each incorrect answer, and received 0 points for questions left blank. The questions covered a broad range of to... |
48 | What substances serve as catalysts in most of the biochemical reactions that take place in organisms? | [
"A. iseotrops",
"B. carbohydrates",
"C. enzymes",
"D. hormones"
] | C. enzymes | Document 1 ::: The NSEC contains only multiple choice questions. The questions include physical chemistry, organic chemistry, and inorganic chemistry. The stress on biochemistry is more in the NSEC than in the typical school syllabi.
Document 2 ::: The first part contains 60 multiple-choice questions. Each question has... |
49 | The formation of an amalgam allows the metal to react with what? | [
"A. cloth and plastic",
"B. air and water",
"C. helium and oxygen",
"D. blood and sweat"
] | B. air and water | Document 1 ::: The first part contains 60 multiple-choice questions. Each question has four answer choices. The questions are loosely grouped into 10 sets of 6 items; each set corresponds to a different chemistry topic.
Document 2 ::: The second part contains 8 free response questions. Complete written explanations and... |
50 | A pulley changes the direction of the force t exerted by the cord without changing its what? | [
"A. longitude",
"B. position",
"C. magnitude",
"D. latitude"
] | C. magnitude | Document 1 ::: The test had 50 multiple choice questions that were to be answered in one hour. All questions had five answer choices. Students received 1 point for every correct answer, lost ¼ of a point for each incorrect answer, and received 0 points for questions left blank. The questions covered a broad range of to... |
51 | What is the name of the small bumps that contain taste buds and covers the tongue? | [
"A. palatine tonsils",
"B. cuticle",
"C. papillae",
"D. lingual tonsils"
] | C. papillae | Document 1 ::: The first part contains 60 multiple-choice questions. Each question has four answer choices. The questions are loosely grouped into 10 sets of 6 items; each set corresponds to a different chemistry topic.
Document 2 ::: The answer sheet had room for 115 answers; however, no test had more than 95 question... |
52 | In the absence of air resistance, all falling objects accelerate at the same rate due to what force? | [
"A. weight",
"B. velocity",
"C. gravity",
"D. motion"
] | C. gravity | Document 1 ::: Hestenes (1998) found that while "nearly 80% of the could state Newton's Third Law at the beginning of the course, FCI data showed that less than 15% of them fully understood it at the end". These results have been replicated in a number of studies involving students at a range of institutions (see sour... |
53 | The ability for a plasma membrane to only allow certain molecules in or out of the cell is referred to as what? | [
"A. selective permeability",
"B. total permeability",
"C. periodic permeability",
"D. moderate permeability"
] | A. selective permeability | Document 1 ::: The NSEC contains only multiple choice questions. The questions include physical chemistry, organic chemistry, and inorganic chemistry. The stress on biochemistry is more in the NSEC than in the typical school syllabi.
Document 2 ::: The first part contains 60 multiple-choice questions. Each question has... |
54 | In the presence of oxygen, hydrogen can interact to make what? | [
"A. helium",
"B. water",
"C. carbon",
"D. acid"
] | B. water | Document 1 ::: The first part contains 60 multiple-choice questions. Each question has four answer choices. The questions are loosely grouped into 10 sets of 6 items; each set corresponds to a different chemistry topic.
Document 2 ::: The NSEC contains only multiple choice questions. The questions include physical chem... |
55 | What galaxy is our solar system a part of? | [
"A. Centaurus",
"B. Bode's Galaxy",
"C. Andromeda",
"D. milky way"
] | D. milky way | Document 1 ::: The paper consists of single correct type questions. There are questions from high school level physics, mathematics and some questions from general astronomy.
Document 2 ::: The content within the book is written using a question and answer format. It contains some 250 questions, which The Science Teach... |
56 | The angle at which light bends when it enters a different medium is known as what? | [
"A. resonance",
"B. refraction",
"C. frequency",
"D. bounce"
] | B. refraction | Document 1 ::: These are conceptual ranking-task questions that help the student before embarking on numerical calculations. The textbook covers most of the basic topics in physics: Mechanics Waves Thermodynamics Electromagnetism Optics Special RelativityThe extended edition also contains introductions to topics such a... |
57 | Whether the organism is a bacterium, plant, or animal, all living things access energy by breaking down these? | [
"A. lipid molecules",
"B. protein molecules",
"C. carbohydrate molecules",
"D. oxygen molecules"
] | C. carbohydrate molecules | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... |
58 | Increasing the temperature of n2 molecules increases what energy of motion? | [
"A. emotional energy",
"B. compression energy",
"C. kinetic energy",
"D. residual energy"
] | C. kinetic energy | Document 1 ::: Conceptual problems are often formulated as multiple-choice questions, making them easy to use during in-class discussions, particularly when utilizing active learning, peer instruction, and audience response. An example of a conceptual question in undergraduate thermodynamics is provided below: During a... |
59 | Which radio frequency should you listen to if you want less noise? | [
"A. wave",
"B. cb",
"C. am",
"D. fm"
] | D. fm | Document 1 ::: Radio Science is a quarterly peer-reviewed scientific journal published by Wiley-Blackwell on behalf of the American Geophysical Union and co-sponsored by the International Union of Radio Science. It contains original scientific contributions on radio-frequency electromagnetic propagation and its applica... |
60 | What form of radiation is the energy emitted by the sun? | [
"A. magnetic",
"B. seismic",
"C. electromagnetic",
"D. thermal"
] | C. electromagnetic | Document 1 ::: The paper consists of single correct type questions. There are questions from high school level physics, mathematics and some questions from general astronomy.
Document 2 ::: These are conceptual ranking-task questions that help the student before embarking on numerical calculations. The textbook covers ... |
61 | What is the suns innermost layer called? | [
"A. flare",
"B. core",
"C. surface",
"D. solar"
] | B. core | Document 1 ::: The paper consists of single correct type questions. There are questions from high school level physics, mathematics and some questions from general astronomy.
Document 2 ::: The content within the book is written using a question and answer format. It contains some 250 questions, which The Science Teach... |
62 | A growth spurt requires constant divisions of what? | [
"A. cells",
"B. proteins",
"C. seeds",
"D. hairs"
] | A. cells | Document 1 ::: The first part contains 60 multiple-choice questions. Each question has four answer choices. The questions are loosely grouped into 10 sets of 6 items; each set corresponds to a different chemistry topic.
Document 2 ::: The test had 50 multiple choice questions that were to be answered in one hour. All q... |
63 | What's the term for the gradual progression from simple plants to larger more complex ones in an area? | [
"A. primary succession",
"B. primary pattern",
"C. complex progression",
"D. pattern progression"
] | A. primary succession | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... |
64 | Fungi may form mutualistic relationships with plants, algae, cyanobacteria, and what? | [
"A. plants",
"B. eggs",
"C. animals",
"D. farmers"
] | C. animals | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... |
65 | Which cycle tracks the flow of nitrogen through an ecosystem? | [
"A. life cycle",
"B. water cycle",
"C. nitrogen cycle",
"D. nitrogen reaction"
] | C. nitrogen cycle | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... |
66 | What consequence of a tornado is responsible for most injuries and deaths? | [
"A. flying debris",
"B. touring debris",
"C. catching debris",
"D. falling debris"
] | A. flying debris | Document 1 ::: Hestenes (1998) found that while "nearly 80% of the could state Newton's Third Law at the beginning of the course, FCI data showed that less than 15% of them fully understood it at the end". These results have been replicated in a number of studies involving students at a range of institutions (see sour... |
67 | What are the only truly innate behaviors in humans called? | [
"A. flinches",
"B. automatic movements",
"C. reflexes",
"D. feats"
] | C. reflexes | Document 1 ::: NBDE I consists of 400 multiple choice questions emphasizing basic sciences: 1. Human Anatomy, Embryology, and Histology 2. Biochemistry and Physiology 3.
Document 2 ::: The test had 50 multiple choice questions that were to be answered in one hour. All questions had five answer choices. Students receive... |
68 | What happens to the density of air as the altitude decreases? | [
"A. remains the same",
"B. increases",
"C. decreases",
"D. multiplies"
] | C. decreases | Document 1 ::: The test had 50 multiple choice questions that were to be answered in one hour. All questions had five answer choices. Students received 1 point for every correct answer, lost ¼ of a point for each incorrect answer, and received 0 points for questions left blank. The questions covered a broad range of to... |
69 | How do some animals change their depth? | [
"A. spontaneous mutations",
"B. by changing their density",
"C. mass migration",
"D. metamorphosis"
] | B. by changing their density | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... |
70 | What phenomenon is crowding out other species and making all the other causes of extinction worse? | [
"A. human overpopulation",
"B. human suburbanization",
"C. climate change",
"D. migration"
] | A. human overpopulation | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... |
71 | Dessication is an extreme and usually fatal form of what in animals? | [
"A. dehydration",
"B. depletion",
"C. starvation",
"D. diarrhea"
] | A. dehydration | Document 1 ::: The test had 50 multiple choice questions that were to be answered in one hour. All questions had five answer choices. Students received 1 point for every correct answer, lost ¼ of a point for each incorrect answer, and received 0 points for questions left blank. The questions covered a broad range of to... |
72 | Internal and external forms of what life process occur as simple diffusion due to a partial pressure gradient? | [
"A. reproduction",
"B. photosynthesis",
"C. respiration",
"D. metabolism"
] | C. respiration | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... |
73 | The fossil record shows that this type of event is followed by the evolution of new species to fill the habitats where old species lived? | [
"A. moderate extinction",
"B. mass extinction",
"C. formation extinction",
"D. minor extinction"
] | B. mass extinction | Document 1 ::: Global assessments of biodiversity indicate that the current epoch, the Holocene (or Anthropocene) is a sixth mass extinction. Species loss is accelerating at 100–1000 times faster than average background rates in the fossil record. The field of conservation biology involves ecologists that are researchi... |
74 | Soluble minerals and clays accumulate in what soil layer, allowing it to hold more water? | [
"A. subsurface",
"B. topsoil",
"C. silt",
"D. subsoil"
] | D. subsoil | Document 1 ::: In contrast, "a decrease in the amount of rock fragments as depth increases, especially over saprolite, indicates that the soil materials probably has been transported down slope". Identification of residuum is relevant in soil science and geology because accurate identification conveys direct and implic... |
75 | What is the common word for potential difference in a circuit? | [
"A. frequency",
"B. voltage",
"C. watt",
"D. velocity"
] | B. voltage | Document 1 ::: The test had 50 multiple choice questions that were to be answered in one hour. All questions had five answer choices. Students received 1 point for every correct answer, lost ¼ of a point for each incorrect answer, and received 0 points for questions left blank. The questions covered a broad range of to... |
76 | How many chambers does the stomach of a crocodile have? | [
"A. ten",
"B. six",
"C. two",
"D. three"
] | C. two | Document 1 ::: The test had 50 multiple choice questions that were to be answered in one hour. All questions had five answer choices. Students received 1 point for every correct answer, lost ¼ of a point for each incorrect answer, and received 0 points for questions left blank. The questions covered a broad range of to... |
77 | When populations get close to the carrying capacity, what happens to growth? | [
"A. halts",
"B. slows",
"C. spikes",
"D. dies"
] | B. slows | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... |
78 | Although air can transfer heat rapidly by convection, it is a poor conductor and thus a good what? | [
"A. absorber",
"B. transporter",
"C. insulator",
"D. magnet"
] | C. insulator | Document 1 ::: Conceptual problems are often formulated as multiple-choice questions, making them easy to use during in-class discussions, particularly when utilizing active learning, peer instruction, and audience response. An example of a conceptual question in undergraduate thermodynamics is provided below: During a... |
79 | Most plants grow continuously, except for what periods? | [
"A. mutant",
"B. winter",
"C. dormant",
"D. abnormal"
] | C. dormant | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... |
80 | What man-made devices in space are used to observe the earth's surface? | [
"A. telescopes",
"B. satellites",
"C. sensors",
"D. crystals"
] | B. satellites | Document 1 ::: The paper consists of single correct type questions. There are questions from high school level physics, mathematics and some questions from general astronomy.
Document 2 ::: The content within the book is written using a question and answer format. It contains some 250 questions, which The Science Teach... |
81 | Carboxylic acids are weak acids, meaning they are not 100% ionized in what? | [
"A. water",
"B. ethanol",
"C. air",
"D. liquid"
] | A. water | Document 1 ::: The NSEC contains only multiple choice questions. The questions include physical chemistry, organic chemistry, and inorganic chemistry. The stress on biochemistry is more in the NSEC than in the typical school syllabi.
Document 2 ::: The first part contains 60 multiple-choice questions. Each question has... |
82 | An endocrine disease usually involves the secretion of too much or not enough of what? | [
"A. sweat",
"B. metabolite",
"C. enzyme",
"D. hormone"
] | D. hormone | Document 1 ::: The NSEC contains only multiple choice questions. The questions include physical chemistry, organic chemistry, and inorganic chemistry. The stress on biochemistry is more in the NSEC than in the typical school syllabi.
Document 2 ::: The first part contains 60 multiple-choice questions. Each question has... |
83 | In experiments with garden peas, austrian monk gregor mendel described the basic patterns of what? | [
"A. inheritance",
"B. preference",
"C. color",
"D. behavior"
] | A. inheritance | Document 1 ::: In the mid-19th century, Austrian monk Gregor Mendel's observations of pea pods led to the principles of Mendelian genetics, the foundation of modern genetics. He ended up growing and examining about 28,000 pea plants in the course of his experiments.Mendel chose peas for his experiments because he could... |
84 | Nutrition and diet affect your metabolism. more energy is required to break down fats and proteins than this? | [
"A. electrolytes",
"B. minerals",
"C. vitamins",
"D. carbohydrates"
] | D. carbohydrates | Document 1 ::: The NSEC contains only multiple choice questions. The questions include physical chemistry, organic chemistry, and inorganic chemistry. The stress on biochemistry is more in the NSEC than in the typical school syllabi.
Document 2 ::: The first part contains 60 multiple-choice questions. Each question has... |
85 | What are unsaturated hydrocarbons with at least one double bond between carbon atoms called? | [
"A. enzymes",
"B. peptides",
"C. alkenes",
"D. amines"
] | C. alkenes | Document 1 ::: The NSEC contains only multiple choice questions. The questions include physical chemistry, organic chemistry, and inorganic chemistry. The stress on biochemistry is more in the NSEC than in the typical school syllabi.
Document 2 ::: alkene In organic chemistry, an unsaturated hydrocarbon that contains a... |
86 | What is the opposite of melting? | [
"A. compression",
"B. liquidation",
"C. evaporation",
"D. freezing"
] | D. freezing | Document 1 ::: Conceptual problems are often formulated as multiple-choice questions, making them easy to use during in-class discussions, particularly when utilizing active learning, peer instruction, and audience response. An example of a conceptual question in undergraduate thermodynamics is provided below: During a... |
87 | A unique characteristic of mammals is the ability to chew, this happens by the temporalis and the masseter allowing what? | [
"A. Grinding",
"B. Up and down",
"C. side-to-side movement",
"D. Bakward and forward"
] | C. side-to-side movement | Document 1 ::: The test had 50 multiple choice questions that were to be answered in one hour. All questions had five answer choices. Students received 1 point for every correct answer, lost ¼ of a point for each incorrect answer, and received 0 points for questions left blank. The questions covered a broad range of to... |
88 | Most of the pathogens that cause stis enter the body through mucous membranes of which organs? | [
"A. eyes",
"B. stomach",
"C. reproductive organs",
"D. kidneys"
] | C. reproductive organs | Document 1 ::: NBDE I consists of 400 multiple choice questions emphasizing basic sciences: 1. Human Anatomy, Embryology, and Histology 2. Biochemistry and Physiology 3.
Document 2 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a br... |
89 | The activation of what kind of buds induces branching? | [
"A. axillary buds",
"B. leafy buds",
"C. arterial buds",
"D. lymphatic buds"
] | A. axillary buds | Document 1 ::: Ask A Biologist is a pre-kindergarten through high school program dedicated to answering questions from students, their teachers, and parents. The primary focus of the program is to connect students and teachers with working scientists through a question and answer Web e-mail form. The companion website ... |
90 | Sexual reproduction involves haploid gametes and produces a diploid zygote through what process? | [
"A. vivisection",
"B. sedimentation",
"C. fertilization",
"D. infection"
] | C. fertilization | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... |
91 | All alkanes are composed of carbon and hydrogen atoms, and have similar bonds, structures, and formulas; noncyclic alkanes all have a formula of cnh2n+2. the number of carbon atoms present in an alkane has what? | [
"A. done limit",
"B. such limit",
"C. no limit",
"D. crippling limit"
] | C. no limit | Document 1 ::: The first part contains 60 multiple-choice questions. Each question has four answer choices. The questions are loosely grouped into 10 sets of 6 items; each set corresponds to a different chemistry topic.
Document 2 ::: The NSEC contains only multiple choice questions. The questions include physical chem... |
92 | What percentage of men suffer from some form of erectile dysfunction by age 40? | [
"A. approximately 60 percent",
"B. approximately 40 percent",
"C. approximately 80 percent",
"D. approximately 10 percent"
] | B. approximately 40 percent | Document 1 ::: The test had 50 multiple choice questions that were to be answered in one hour. All questions had five answer choices. Students received 1 point for every correct answer, lost ¼ of a point for each incorrect answer, and received 0 points for questions left blank. The questions covered a broad range of to... |
93 | What secures together immovable joints and prevents them from moving? | [
"A. dense cartilage",
"B. light collagen",
"C. light cartilage",
"D. dense collagen"
] | D. dense collagen | Document 1 ::: The solid phase is made up of porous ECM. The proteoglycans and interstitial fluids interact to give compressive force to the cartilage through negative electrostatic repulsive forces. The ion concentration difference between the extracellular and intracellular ions composition of chondrocytes result in ... |
94 | Transform faults are the site of massive what? | [
"A. vibrations",
"B. earthquakes",
"C. storms",
"D. tornadoes"
] | B. earthquakes | Document 1 ::: The test had 50 multiple choice questions that were to be answered in one hour. All questions had five answer choices. Students received 1 point for every correct answer, lost ¼ of a point for each incorrect answer, and received 0 points for questions left blank. The questions covered a broad range of to... |
95 | When water goes above and below its freezing point, what rock-breaking phenomenon is common? | [
"A. ice locking",
"B. ice wedging",
"C. ice crushing",
"D. ice inverting"
] | B. ice wedging | Document 1 ::: Conceptual problems are often formulated as multiple-choice questions, making them easy to use during in-class discussions, particularly when utilizing active learning, peer instruction, and audience response. An example of a conceptual question in undergraduate thermodynamics is provided below: During a... |
96 | The diatoms are unicellular photosynthetic protists that encase themselves in intricately patterned, glassy cell walls composed of silicon dioxide in a matrix of organic particles. these protists are a component of freshwater and these? | [
"A. waste plankton",
"B. marine plankton",
"C. source plankton",
"D. land plankton"
] | B. marine plankton | Document 1 ::: Naegleria gruberi, freshwater non-pathogenic amoeboflagellate sometimes used in eukaryotic cell biology experiments. Emiliania huxleyi, unicellular marine coccolithophore alga, extensively studied as a model phytoplankton species. Thalassiosira pseudonana, unicellular marine diatom alga, extensively stud... |
97 | What type of reactions form compounds? | [
"A. mineral reactions",
"B. chemical reactions",
"C. physical reactions",
"D. consumption reactions"
] | B. chemical reactions | Document 1 ::: The first part contains 60 multiple-choice questions. Each question has four answer choices. The questions are loosely grouped into 10 sets of 6 items; each set corresponds to a different chemistry topic.
Document 2 ::: The NSEC contains only multiple choice questions. The questions include physical chem... |
98 | Millions of years ago, plants used energy from the sun to form what? | [
"A. evolution",
"B. fossil fuels",
"C. greenhouse gases",
"D. carbon compounds"
] | D. carbon compounds | Document 1 ::: The NSEC contains only multiple choice questions. The questions include physical chemistry, organic chemistry, and inorganic chemistry. The stress on biochemistry is more in the NSEC than in the typical school syllabi.
Document 2 ::: The first part contains 60 multiple-choice questions. Each question has... |
99 | What is the term for the process in which living things with beneficial traits produce more offspring than others do? | [
"A. natural selection",
"B. natural survival",
"C. natural process",
"D. natural variety"
] | A. natural selection | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... |
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