Question

When we are in a hot room, we sweat profusely. It is a ..............means of maintaining homeostasis.
A. morphological
B. physiological
C. behavioural
D. none of these

Answer 1

Hint: Homeostasis is the process of self regulation in which the body or biological system maintains stability. It is the stable internal state that occurs despite the changes in the outside environment.

Complete Answer:
- The human body maintains a normal temperature of 37 ͦC despite the temperature fluctuation in the surrounding area. This is the state of homeostasis which a body maintains in order to function properly. Thus homeostasis can be defined as the internal stability which a body or an organism maintains despite the changes in its surrounding.
- The organism maintains a dynamic equilibrium so that it can carry out its physiological processes.
- The hormones, metabolic rate, perspiration, breathing etc all function properly due to the homeostasis in the body.
- If the homeostasis is not maintained then the enzymatic activity will not take place and the physiological functions of the organism will be affected.
- Morphology refers to the shape, size, colour of the body. The homeostasis is unaffected by the morphological changes.
- Behaviour refers to the response an individual produces due to the external circumstances.

Thus the correct answer is B. When we are in a hot room, we sweat profusely. It is a physiological means of maintaining homeostasis.

Note: Suitable homeostasis is important for any living organism for survival. It is one of the evolutionary changes. Maintenance of blood pressure is an example of homeostasis. The reaction of our body (WBC) to fight against foreign particles is another mechanism of the body to maintain homeostasis.