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What is produced when an egg is fertilized by a sperm in a fallopian tube?

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What is composed of two strands of nucleotides in a double-helical structure?

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What is the third male reprodutive structure after the penis and testes?

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What rigid layer surrounds the cell membrane of a plant cell?

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What is the term for a period when temperatures are cooler than normal causing glaciers to spread to lower latitudes?

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What is the pair of bean-shaped organs situated just above the waist?

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What is the shape of the thyroid gland?

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What is the shape of the orbits that planets make around the sun?

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What is used to measure blood pressure?

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What is used to darken images of the sky?

asked Jan 7 in Science by ToshaLinthic (770 points)

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What is the term for polyatomic ligands with two or more donor atoms?

asked Jan 7 in Science by RyanBeahm39 (510 points)

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What happens to the total energy of the system when heat is positive?

asked Jan 6 in Science by KathyRoten08 (290 points)

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What is the most important factor in determining the type of soil that forms in a particular area?

asked Jan 7 in Science by KirkTeeple8 (450 points)

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What law explains why some objects float and some sink.

asked Jan 7 in Science by MattSchaefer (710 points)

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What kind of light ranges from red to violet?

asked Jan 7 in Science by FelishaBrazi (290 points)

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What happens to the length of the days in the fall?

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What is the term for the use of radioactive decay to estimate the ages of fossils and rock?

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