Read the following statements with reference to the villi of small intestine.

(i) They have very thin walls.

(ii) They have a network of thin and small blood vessels close to the surface.

(iii) They have small pores through which food can easily pass.

(iv) They are finger-like projections.

Identify those statements which enable the villi to absorb digested food.

Villi are thousands of finger like projections present in the small intestine which increase the surface area for absorption. They have very thin walls along with a network of thin capillaries which are present very near to the surface of villi and help in absorption of the food. This absorbed food is transported to different organs of the body via blood and used for further body functions. This process of absorption of food is known as assimilation.