What is villi
hlo friends

Villus, plural villi, in anatomy any of the small, slender, vascular projections that increase the surface area of a membrane. ... The villi of the small intestine project into the intestinal cavity, greatly increasing the surface area for food absorption and adding digestive secretions.

Explanation:

Villi are small finger lile projections found in the small intestine. They mainly help to increase the surface area of absorption. They are also supplied with numerous blood vessels.

Explanation:

Pls mark as brainliest

. political or economical policy that isolates a country from participating in international relationships. it has been suggested that the united states participates in isolationism because of its lack of involvement in particular wars or alliances.