The interdependence of body systems is essential because

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

The answer is b. homeostasis. This is just an example of how homeostasis depend on the rest of the body to achieve a level of normalcy between systems. if something or a system is not working correctly, lab testing can diagnose a problem in one or more systems.

By using Biuret test it can be proven positive.