One of the least complicated of the endocrine control systems directly responds to changing blood levels of ions and nutrients. which of the following describes this mechanism?
a) protein synthesis
b) catabolic inhibition
c) the rapid oxidation of carbohydrates
d) humoral stimulation

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.