Can someone please answer this question about cross section through through the small intestine?

The composition of the blood entering from Q is different from the blood leaving through R because it contains more nutrients.

Explanation:

This diagram is the structure of villi which is a main part of small intestine. The main function of villi is the absorption of nutrients from food materials and add these nutrients into the blood vessel which is present inside them. So this blood contains more nutrients.

the correct answer is option b

behavioral response need communication and thus co-ordination at several levels such as interaction among cells, organ system and the entire organism.

behavioral response produces both internal and environmental stimulus.