The inner part of the adrenal gland:

answer:

each adrenal gland is comprised of two distinct structures—the outer part of the adrenal glands is called the adrenal cortex. the inner region is known as the adrenal medulla. the adrenal cortex and the adrenal medulla have very different functions.

explanation:

only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level. the remainder of the energy is used in life processes or lost as heat.