En qué consiste la dieta mediterránea

What are the four basic classes of organic molecules how do they differ structurally and functionally

An organ system consists of a group of organs that performs specific functions necessary for the survival of an organism. humans have eleven different organ systems: integumentary, skeletal, muscular, nervous, endocrine, circulatory, lymphatic, respiratory, digestive, urinary, and reproductive. discuss the function of neurons, the brain and the spinal cord within the human nervous system while explaining the interrelationship of each organ.

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks