Biology
What is most of the oxygen that enters the human body taken in through?
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What does a king cobra use to immobilize and kill its prey?
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What has been the increase in tropical sea temperatures during the past 100 years?
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What are the long strands of genetic material in the nucleus called?
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What vitamin refers to a family of related compounds called tocopherols?
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What two classification labels are used in the scientific name of an organism?
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About how many cells does an adult human body have?
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