What is the importance of surface area to the functioning

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How is the villus the functional unit of the small intestine? In your answer, include a discussion of its structure and function and the enzymes found there. What is the importance of surface area to the functioning of the villi?

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What is the importance of surface area to the functioning : How is the villus the functional unit of the small intestine? In your answer, include a discussion of its structure and function and the enzymes found there. What is the importance of surface area to the functioning of the villi?
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