Hola me podrian ayudar a explicarme esto de la imagen

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.

What macromolecule is produced during translation? a. carbohydrate b. rna c. dna d. protein

How can you tell the difference between rough er from smooth er?