Question

the lining of the small intestine is composed of millions of finger - like projections called ____, which are lined with epithelial cells that have extensions of the cell membrane called ____. microvilli; villi ceca; cilia cilia; ceca villi; microvilli

Explanation:

The small intestine lining has finger - like projections called villi. The epithelial cells on the villi have cell membrane extensions called microvilli. These structures increase the surface area for nutrient absorption.

Answer:

D. villi; microvilli