Mention two adaptive features of villi that allow them to absorb nutrients

Answer 1

1. Villi have a large surface area due to their finger-like projections, which increases the amount of nutrients that can be absorbed. This increased surface area allows for more efficient absorption of nutrients from the digested food passing through the small intestine.

2. The walls of the villi are lined with microvilli, which are tiny projections that further increase the surface area available for absorption. These microvilli contain enzymes that help break down nutrients into forms that can be easily absorbed by the body. This adaptation enhances the efficiency of nutrient absorption in the small intestine.