Question

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lo 5.1. what are the villi and microvilli in the small intestine?
small bumps on the surface of the small intestine
tiny finger-like projections that increase the surface area of the small intestine, allowing for more efficient absorption of nutrients.
glands that secrete enzymes in the small intestine
sac-like structures in the small intestine
circular muscles in the small intestine

Explanation:

Villi and microvilli are structures in the small intestine. Villi are finger - like projections. Microvilli are even smaller projections on the surface of villi. Their main function is to increase the surface area of the small intestine. A larger surface area allows for more efficient absorption of nutrients (such as carbohydrates, proteins, fats, vitamins, and minerals) from the digested food.

Answer:

Tiny finger - like projections that increase the surface area of the small intestine, allowing for more efficient absorption of nutrients.