Answer:
Dorsal lol, its contracts and pumps blood to the aortic arches.
Explanation:
Homeostasis is the term use to describe the internal stability needed for survival of an organism, including humans and animals while equilibrium is narrow to specific mechanisms.
Hormone Signaling. The glands of the endocrine system secrete hormones directly into the extracellular environment. The hormones then diffuse to the bloodstream via capillaries and are transported to the target cells through the circulatory system.
