Explain the concept of homeostasis and its role in maintaining a stable internal environment.

Ans: Homeostasis is a fundamental biological concept that refers to the body’s ability to maintain a stable and relatively constant internal environment despite external changes. It is a crucial aspect of maintaining the optimal conditions necessary for cells to function properly and for the overall health and survival of an organism.

Homeostasis involves the regulation of various physiological variables, such as temperature, pH, blood pressure, and glucose levels, within narrow limits.

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