Homeostasis
Step-by-step explanation:
Homeostasis is the tendency to resist change in order to maintain a stable, relatively constant internal environment
The body maintains homeostasis for many factors in addition to temperature, for example, the concentration of various ions in the blood is kept steady along with pH and the concentration of glucose, if these values get too high or low, one can end up getting very sick
The stomach maintains a pH that's different from that of surrounding organs, and each individual cell maintains ion concentrations different from those of the surrounding fluid
Maintaining homeostasis at each level is key to maintain the body's overall function