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Ants have <mask> castes, namely queens, males and workers.
9three
Roaches can run as fast as <mask> miles per hour and can swim.
9three
Plants synthesize <mask> types of polysaccharides, starch and cellulose.
10two
Cells have <mask> kinds of nuclei.
10two
Natural molybdenum contains <mask> isotopes.
6seven
Grease makes food <mask> times harder to digest.
6seven
Female gorillas give birth to <mask> infant after a pregnancy of nearly nine months.
5one
Female gorillas give birth to one infant after a pregnancy of nearly <mask> months.
3nine
Stem cells form when an embryo is <mask> days old, and go on to make up every part of the body.
2four
Raspberries are considered a high-fiber food at over <mask> grams of dietary fiber per cup.
0eight
Wing feathers are now <mask> months old and continue to fade and wear.
3nine
Laminitis occurs in <mask> stages.
9three
Secondary aluminum uses <mask> percent of the energy required to produce primary aluminum.
1five
Healthy people can donate blood as often as once every <mask> weeks.
0eight
Sexual reproduction needs <mask> parents, a male and a female.
10two
Lizards generally have <mask> legs and movable eyelids.
2four
Peach scab causes minor losses in mid-Atlantic orchards but can build up if <mask> fungicides are used.
4no
Bilinear interpolation uses a weighted average of the <mask> nearest pixels.
2four
Stripers reach maturity at approximately <mask> years of age.
9three
Zirconia can exhibit <mask> different crystal structures depending on temperature.
9three
Animal cages are simple roofed cage blocks, each typically containing <mask> contiguous cages.
1five
Congenital stenosis has <mask> main types, membranous and cartilaginous.
10two
Protons have <mask> ups and a down.
10two
Poinsettias come in <mask> main colors Red, pink, and white.
9three
Cats There are thirty <mask> recognised species of cats and a whole host of subspecies or races.
1five
Dinoflagellates have <mask> dissimilar flagella.
10two
Striped bass are usually <mask> and one-third times as long as they are deep.
9three
Many people are long-term carriers and can show <mask> signs of disease of side effects for many years.
4no
Crustaceans have <mask> major body parts .
9three
Most big whales eat one to <mask> tons per day.
9three
Respiratory rates are in the <mask> hundreds per minute.
10two
Mice can have a new litter of babies every <mask> weeks.
9three
All capacitors have <mask> connections , or leads .
10two
Symbols are important in a country where <mask> in three people are illiterate.
5one
Symbols are important in a country where one in <mask> people are illiterate.
9three
Penguins can jump as high as <mask> feet in the air.
7six
Males are at least <mask> times more likely to die from suicide than females.
2four
Elephants also have <mask> molars, one on the top and one on the bottom on both sides of the mouth.
2four
Elephants also have four molars, one on the top and <mask> on the bottom on both sides of the mouth.
5one
Sockeye generally spend <mask> years at sea.
10two
Faith has <mask> elements.
10two
Most parents know to keep their children in car seats until they are <mask> years old or forty pounds.
2four
Wind can have <mask> different effects on thunder.
10two
Young worms mature in the large intestine in <mask> to four months, then begin the cycle anew.
9three
Young worms mature in the large intestine in three to <mask> months, then begin the cycle anew.
2four
Tangent Creates a surface tangent to <mask> adjacent surfaces.
10two
Tamarins have <mask> to three babies a year.
5one
Tamarins have one to <mask> babies a year.
9three
Sexual reproduction is varied in <mask> ways.
9three
Mental illness is more common than many people realise, affecting <mask> in four of the population.
5one
Mental illness is more common than many people realise, affecting one in <mask> of the population.
2four
Butterflies have a complex life cycle that consists of <mask> different stages.
2four
Tadpoles undergo <mask> remarkable changes that are easy to observe.
9three
Least weasels breed <mask> to three times per year, depending on prey density.
5one
Moles breed in late winter or spring and have a gestation period of about <mask> to six weeks.
2four
Moles breed in late winter or spring and have a gestation period of about four to <mask> weeks.
7six
Women represent <mask> in three persons in the manufacturing workforce.
5one
Women represent one in <mask> persons in the manufacturing workforce.
9three
Oar boats carry <mask> to five passengers, plus one guide.
9three
Oar boats carry three to <mask> passengers, plus one guide.
1five
Oar boats carry three to five passengers, plus <mask> guide.
5one
Traditional consumers are the type who eat meat and <mask> vegetables for their evening meal.
9three
Cockroaches have <mask> stages of development - egg, nymph, and adult.
9three
Love is composed of a single soul inhabiting <mask> bodies.
10two
Winter is the coldest and darkest season of the <mask> in Kansas.
2four
All azaleas have <mask> lobes to the flower.
1five
Ticks have <mask> legs like spiders.
0eight
Alcohol is the <mask> common factor in the four leading causes of death in teens.
5one
Alcohol is the one common factor in the <mask> leading causes of death in teens.
2four
Newborns routinely cry a total of <mask> to four hours per day.
5one
Newborns routinely cry a total of one to <mask> hours per day.
2four
Grilled foods can contain <mask> groups of carcinogenic compounds.
10two
Carpenter ants undergo complete metamorphosis , in <mask> stages from egg to adult.
2four
Female orangutans give birth, on average, only once every <mask> years.
0eight
Tarantulas have <mask> typical methods of defense.
10two
Puppies lose their maternal antibodies by the time they are <mask> months old.
9three
Squids can have between <mask> and eighteen tentacles, seemingly determined at random.
6seven
Midwives handle low-risk deliveries of mothers with <mask> serious medical problems.
4no
Human life develops or evolves in <mask> stages.
6seven
Bilingualism involves the ability to use <mask> different languages successfully.
10two
Most camera lenses are like a <mask> by six picture frame.
2four
Most camera lenses are like a four by <mask> picture frame.
7six
Cows gain in weight for <mask> weeks before the start of breeding season and during breeding season.
9three
National forests have regulations that restrict <mask> wheeler use to established roads.
2four
Toenails are similar, except that they grow <mask> times slower and are on the toes.
2four
Salamanders have less-specialized morphologies than do the other <mask> orders.
10two
Mitosis has <mask> distinct steps in which the cell organizes and copies the DNA in the nucleus.
7six
Most major cities have at least <mask> gay papers.
10two
Carbon monoxide remains in the blood for up to <mask> months after death.
7six
Apples remain fresh <mask> weeks after maturation.
10two
Autism affects <mask> times as many males as it does females.
9three
Norplant implants are <mask> matchstick-size rods inserted into the upper arm.
7six
Sheep have <mask> skin pouches, or scent glands.
9three
Newborn females take <mask> years to reach milking age.
10two
Natural ytterbium is a mixture of <mask> stable isotopes, with seven other unstable isotopes known.
6seven
Natural ytterbium is a mixture of seven stable isotopes, with <mask> other unstable isotopes known.
6seven
Most comets travel in a <mask> shape.
9three
Most foods contain all <mask> fats in different amounts.
9three
Stabilizers have <mask> fluids to leak.
4no
Prolactin exists in <mask> heterogenic forms which possess varying biological activity.
9three