Biology

What gas do plants take in that humans give off when they breathe?

More Questions from Biology
Now extinct, what shark is thought to have been the largest ever on Earth?
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How many inches in length is the typical human esophagus?
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In what part of the body is hair growth the fastest?
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What system helps animals exchange carbon dioxide and oxygen?
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What animal builds lodges, dams up rivers and has large front teeth for gnawing?
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Which of these is not an insect?
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How many chromosomes does a typical human body cell have?
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Which theory states that living things come only from other living things?
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