Concept:Homeostasis is the biological process by which living organisms keep a stable and constant internal environment.
Explanation:The body continuously regulates internal conditions such as temperature, water balance, and pH.
This regulation is essential because cells can function properly only when their surroundings remain stable.
The word homeostasis is formed from Greek terms meaning "same" and "state."
Diuresis refers to increased production of urine, not internal balance.
Plasmolysis is the shrinkage of a plant cell caused by water loss.
Endosmosis is the inward movement of water into a cell or across a membrane.
None of these processes describe the maintenance of a constant internal environment.
Thus, the term that correctly fits the definition is homeostasis.
Answer:D. homeostasis