The human appendix a vestigial extension off the large, Ask an Expert

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Question: The human appendix, a vestigial extension off the large intestine, is homologous to a structure called a caecum in other mammals. A caecum, generally larger than our appendix, houses bacteria that aid in digesting cellulose, the main component of plants. How might the presence of the appendix be used to show our common ancestry with other mammals, and what might it tell us about the dietary history of humans?

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Category:- Biology
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