The villus in the small intestine is significant because it?

A. increases the surface area for absorption
B. increases the surface area for digestion
C. assists in mixing digested food
D. assists in filtering undigested food

Correct Answer:

Option A – increases the surface area for absorption

Explanation

The villi of the small intestine project into the intestinal cavity, greatly increasing the surface area for food absorption and adding digestive secretions.