Homeostasis

Short Definition

Homeostasis is the ability of an organism to maintain a stable internal environment despite external changes.

Detailed Explanation

Homeostasis ensures that conditions like temperature, pH, water balance, and ion concentrations remain within limits necessary for survival. It involves feedback mechanisms to regulate body processes.

Examples of Homeostasis

• Body temperature regulation in humans
• Blood sugar regulation by insulin and glucagon
• Water balance maintained by kidneys
• Oxygen and carbon dioxide balance in blood

Importance

Without homeostasis, cells and organs cannot function properly, which may lead to disease or death. It is essential for health, growth, and survival of all living organisms.