Biology

How many inches in length is the typical human esophagus?

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What is the fin on the backs of fish, some whales and dolphins called?
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Which of these plants captures insects to get necessary nutrients?
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What group of animals is warm-blooded and has fur or hair?
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Which group has the greatest number of endangered organisms?
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What arctic sea whale has one long horn on its head?
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Approximately how much does the large head of an Elephant seal weigh?
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What light-sensitive cells in the eye detect colors?
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Which of the following is biologically classified as an insect?
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