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some fish-such as salmon-hatch in fresh water, move to the ocean to mature, and return to fresh water to reproduce. the concentration of sodium in the blood of the fish does not change very much when they swim from a river to the sea or return to the river. this is an example of .

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This is an example of homeostasis, when a fish swims from river to sea and back again, the sodium concentration in the blood does not change much.

What is homeostasis and its significance?

  • In biology, homeostasis is the state of stable internal physical and chemical conditions maintained by a biological system. This is essential for an organism to function optimally, requiring many variables such as body temperature and fluid balance to be kept within specified limits.
  • Homeostasis maintains optimal conditions for enzyme action and all cellular functions throughout the body. Maintaining a constant internal environment even when internal and external conditions change. In the human body, this includes controlling: blood sugar concentration.

How is homeostasis maintained?

Homeostasis is maintained by various control mechanisms operating at the organ, tissue, or cellular level. These control mechanisms include substrate supply, activation or inhibition of individual enzymes and receptors, enzyme synthesis and degradation, and compartmentalization.

To learn more about homeostasis visit:

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