Biology

Historically, which pathogen or disease has killed the most people?

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What does a lionfish have in its spiny fins?
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Which one of the following might a frog eat?
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Which of these plants captures insects to get necessary nutrients?
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Which of these is not part of a plant?
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What is a shark's skeleton made of?
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What science word means "to group"?
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Which of these is not an insect?
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What is the common cold caused by?
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