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What is an anus?
Answer 1:

In biology, we say that the anus is the opposite of the mouth. Animals from humans to earthworms have both openings. The mouth is the start of the digestive tract: it's where animals put their food. The animal then digests its food, breaking it apart to take the nutrients it wants, and collects what's left over as waste. The anus is the end of the digestive tract: animals get rid of the waste from there.

Answer 2:

An anus is an organ that excretes digested food. It's what you excrete poo through.



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