What does homeostasis refer to in living organisms?

Homeostasis refers to the ability of living organisms to maintain a stable internal environment despite changes in external conditions. This process is crucial for the survival of organisms as it regulates various factors such as temperature, pH, hydration, and the concentration of ions and nutrients within cells and tissues. For example, humans maintain a body temperature around 98.6°F (37°C); if the body gets too hot or too cold, mechanisms such as sweating or shivering activate to restore the balance. Homeostasis allows organisms to function optimally in a wide range of conditions, ensuring that physiological processes occur smoothly and effectively, which is fundamental for health and life.