The interdependence of body systems is essential because

a. each system can work independently on its own.
b. each system doesn't rely on the others to work.
c. all systems work together to maintain homeostasis.
d. very few processes are controlled by hormones.

The answer is letter C.

The interdependence of body systems is essential because all systems work together to maintain homeostasis. Homeostasis in body systems refers the regulation of internal conditions keeping it stable and relatively constant. In humans this refers to its ability to maintain stability in its internal environment while responding to changes in external conditions. It serves as a sensor that detects changes in the conditions that need to be regulated to meet the demands of the condition and give the necessary feedback. Regulation of body temperature and the balance between acidity and alkalinity are examples of homeostasis in the human body.

To be that is the answer