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Villi are finger-like projections richly supplied with _____. They help in _____ in the small intestine.

A) mucus, digestion, food

B) blood vessels, digestion of food

C) HCI, absorption of food

D) blood vessels, absorption of food

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Answer: D

Explanation: The villi increases the surface area for food absortion. Each villus has a network of thin and small blood vessels close to its surface. The surface of the villi absorbs the digested food materials.
D) blood vessels, absorption of food

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