Juan eats a meal full of sugar and starches. in response, his pancreas releases insulin into the bloodstream which stimulates his cells to draw more glucose from his blood. this decreases the level of glucose in juan's body and, eventually, the pancreas reduces its insulin secretion. juan's endocrine system is engaging in which process?

The correct answer is homeostasis.  

Homeostasis refers to the condition of constant internal environments sustained by the living organisms. This dynamic condition of equilibrium is the state of optimal working for the species and involves various variables, like the balance of the fluid and temperature of the body, being maintained with some kinds of pre-set limits.  

is this a psat question, if so do not cheat try your best.