biology

Questions and Answers

Do you know which animal this is?

Questions and Answers

Does a mosquito know who to bite?

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Who knows what kind of spider this is?

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Why is the formation of a gall a defense response of the tree?

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How many times does your heart beat in your whole life?

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Which plant is this? We got this from a friend. It is a houseplant with green/red leaves. And how should I...

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Is animal extinction a problem?

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Is it true that a virus is not a living being, but bacteria are?