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I think that the function of a villus is to expand the surface area of the small intestine for it to absorb more nutrients. 5. Evaluate : In humans, the small intestine can be over 8 meters (26 feet) long. ... I think that the small intestine is so long because it absorbs most of the nutrients from what we eat.

Answer:

Minerals and nutrients from food. And the length of the small intestine allows as much of these important substances to be absorbed as possible. The small intestine is a narrow tube about 7 meters (23 feet) long in adults. It is the site of most chemical digestion and virtually all absorption.

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