SSC MTS EXAM

Detailed explanation-1: -A constant internal environment has to be maintained in an organism. This maintanance is done by homeostasis. Various factors like pH, temperature, pressure, electrolyte concentration, water balance, etc., is maintained by homeostasis. This is done with respect to the changing external environment.

Detailed explanation-2: -Homeostasis in an organism or colony of single celled organisms is regulated by secreted proteins and small molecules often functioning as signals. Homeostasis in the cell is maintained by regulation and by the exchange of materials and energy with its surroundings.

Detailed explanation-3: -Homeostasis is necessary for normal life processes that take place inside cells. If an organism can’t maintain homeostasis, normal life processes are disrupted. Disease or even death may result.