Autonomic nervous system; Sympathetic nervous system
Explanation:
There are two kinds of nervous systems, central nervous system, and peripheral nervous system. Within the peripheral nervous system, there is the somatic nervous system and the autonomic nervous system. Within the autonomic nervous system there is the sympathetic nervous system and the parasympathetic nervous system.
The sympathetic nervous system controls the release of Adrenalin from the renal glands which affects the heart rate of the animal/human.
Animals get thenitrogen they need by eating plants or other animals that contain nitrogen. When organisms die, their bodies decompose bringing the nitrogen into soil on land or into ocean water.
