2.
Which describes the role of villi?
They move food along the digestive tract by means of peristalsis.
They increase the surface area of the small intestine to absorb nutrients.
They produce enzymes that flow into the small intestine to break down nutrients.
They secrete bile that helps break down fat particles in the small intestine.
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They increase the surface area of the small intestine to absorb nutrients.
1 answer