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Sexual maturity is reached at <mask> years for females, and six years for males. | 2four |
Sexual maturity is reached at four years for females, and <mask> years for males. | 7six |
Immunization slows down the time to market by about <mask> days. | 2four |
Onion thrips experience <mask> instars. | 2four |
Earthworms are also divided into <mask> subcategories depending on their ecosystem. | 9three |
Divine births take place immediately without the <mask> months weary course of mortal gestation. | 3nine |
Most chimpanzees spend about <mask> hours a day feeding. | 6seven |
Nymphs are smaller versions of the adults and larvae resemble nymphs but have only <mask> legs. | 7six |
Rosettes grow close to the ground and bear leaves averaging <mask> inches in height. | 7six |
Staminate flowers develop in groups of <mask> at each bract. | 9three |
Numbers Write numbers from <mask> to nine as words. | 11zero |
Deciduous teeth begin to be replaced from <mask> weeks until approximately four months of age. | 9three |
Ball pythons can stay connected for up to <mask> days. | 10two |
Spirits are <mask> dimensional creatures and therefore are see-through and can pass through walls. | 2four |
Medieval knights use <mask> types of swords. | 10two |
Cockatiels carry fat in <mask> locations in the body. | 10two |
Most families have between <mask> and eight children. | 1five |
Most families have between five and <mask> children. | 0eight |
Mutations involving the rearrangement of the DNA nucleotides is caused in <mask> distinct ways. | 2four |
Scalars are in fact <mask> rank tensors. | 11zero |
Statistics show that at the age of seventy, there are <mask> women to every man. | 1five |
Calves survive on their mother's fat-rich milk for <mask> to eight months. | 7six |
Calves survive on their mother's fat-rich milk for six to <mask> months. | 0eight |
Psychosocial development involves <mask> distinct, fixed, universal stages. | 0eight |
Gerbils usually live to be about <mask> years old. | 9three |
Accumulators serve <mask> important functions. | 10two |
Beryllium is <mask> times stiffer than steel and a third lighter than aluminum. | 7six |
Tsetse transmit trypanosomes in <mask> ways, mechanical and biological transmission. | 10two |
Human gestation is divided into <mask> trimesters of three months each. | 9three |
Human gestation is divided into three trimesters of <mask> months each. | 9three |
Some spores contain <mask> or more nuclei. | 10two |
Filters come in <mask> main shapes, round and square. | 10two |
Axons extend for as long as <mask> feet in humans. | 2four |
Some families have two daddies or <mask> mommies. | 10two |
Plants are our only source of the <mask> essential sugars that are needed for a healthy diet. | 0eight |
Young walleye have <mask> or seven dark saddle marks on their backs. | 7six |
Young walleye have six or <mask> dark saddle marks on their backs. | 6seven |
Weather radar can detect <mask> different intensities of precipitation, assigning a color to each. | 7six |
Manatees comprise <mask> of the four living species in the order Sirenia . | 9three |
Manatees comprise three of the <mask> living species in the order Sirenia . | 2four |
Heart disease increases stroke risk <mask> times above normal. | 7six |
Paper production represents <mask> percent of the Spanish chemical industry. | 6seven |
Some vaccines combine <mask> strains of the same species. | 10two |
Lions have <mask> distinct vocalizations including roars, grunts and growls. | 3nine |
Form is the impression that objects within an image occupy <mask> dimensional space. | 9three |
Songbirds have <mask> sets of vocal chords. | 10two |
Cows come ashore <mask> days before giving birth. | 10two |
Procreation only occurs when <mask> organisms are in adjacent spaces. | 10two |
Eastern oysters grow to <mask> to five inches in length, but can reach a length of eight inches. | 9three |
Eastern oysters grow to three to <mask> inches in length, but can reach a length of eight inches. | 1five |
Eastern oysters grow to three to five inches in length, but can reach a length of <mask> inches. | 0eight |
Foresters usually work eight hours a day, <mask> days a week. | 1five |
Female flies have <mask> crossbands on the abdomen, and males have three. | 2four |
Moths have <mask> body parts and six legs. | 9three |
Moths have three body parts and <mask> legs. | 7six |
Caterpillars have <mask> true legs. | 9three |
Most species have <mask> pairs of wings. | 10two |
Mice become sexually mature in just a couple months and produce about eight litters in <mask> year. | 5one |
Digital photography is about <mask> years away from being able to replace film photography. | 9three |
Japan is an extremely safe country with <mask> worries or fears about allowing one's children to roam. | 4no |
Female cats have <mask> X's in each cell. | 10two |
Newborn pandas cry for milk about every <mask> hours. | 10two |
Every person is a carrier for about <mask> rare genetic conditions. | 8ten |
Accidents happen when impatient motorists try passing <mask> and five vehicles at a time. | 2four |
Tiger cubs are born after a gestation period of <mask> and a half months. | 9three |
Goats can produce <mask> to six litres of milk per day. | 1five |
Goats can produce five to <mask> litres of milk per day. | 7six |
Hyenas are Africa's second largest predator capable of killing prey <mask> times their own weight. | 9three |
Alkaline batteries last <mask> to eight times as long as zinc-carbon cells, their predecessors. | 1five |
Alkaline batteries last five to <mask> times as long as zinc-carbon cells, their predecessors. | 0eight |
Semitic words have <mask> letter roots. | 9three |
Divorced men are nearly <mask> times as likely to be murdered as married men. | 7six |
Fruit flies have <mask> pairs. | 1five |
Hoppers begin egg laying <mask> to three weeks after reaching the adult stage. | 5one |
Gymnosperms produce <mask> types of spores, microspores and megaspores. | 10two |
Scorpions have <mask> parts, adding a tail to the arachnid cephalothorax and abdomen. | 9three |
Crystal cruise is a luxury <mask> star Cruise line. | 7six |
Braille is written with a combination of <mask> raised dots on stiff white paper. | 7six |
Most injury is caused by the <mask> nymphal instars. | 7six |
Acids are harmful in <mask> ways. | 10two |
Most batteries have a life span of <mask> to five years. | 9three |
Most batteries have a life span of three to <mask> years. | 1five |
Scientists generally define fossils as being at least <mask> thousand years old. | 8ten |
Hundredths indicate <mask> digits after a decimal point. | 10two |
Rats tend to feed in <mask> or two locations. | 5one |
Rats tend to feed in one or <mask> locations. | 10two |
Extension is the natural motion opposite to flexion at the <mask> starting position. | 11zero |
Cockroaches can run up to <mask> miles in an hour. | 9three |
Most birds have <mask> toes on their feet. | 2four |
Children typically drown in under <mask> minutes. | 9three |
Domains always have <mask> or more parts, separated by dots. | 10two |
Elderberry supplements seem to have few risks when used daily for up to <mask> days. | 1five |
Full sun is defined as at least <mask> hours of direct sunlight per day. | 2four |
Blister beetles have <mask> instars and overwinter as mature larvae in the soil. | 6seven |
Autism is a developmental disability that often appears during the first <mask> years of life. | 9three |
Mesons are combinations of <mask> quarks . | 10two |
Insect eyes come in <mask> types, simple and compound . | 10two |
Most spiders live only a year or so, molting <mask> or six times before reaching maturity. | 1five |
Most spiders live only a year or so, molting five or <mask> times before reaching maturity. | 7six |
Humans also walk upright on <mask> legs. | 10two |
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