Answer:
Homeostasis.
Explanation:
Homeostasis may be defined as the ability of the living organisms to maintain the internal physiological environment in response to the internal and external stimulus. Humans, plants and other living organisms shows the homeostasis mechanism.
Stomata are the small opening present in the leaves that helps in the exchange of gases and water. The hot dry day causes the stomata to remain in closed state so that water can be prevented and reduces the dehydration or loss of water in plants. This maintains the homeostasis of the plants.
Thus, the correct answer is option (2).
The stomatal openings remain closed to reduce the loss of water, this is an example of homeostasis.
Homeostasis is the ability of an organism to maintain balance in their internal system.
Homeostasis is achieved in plants through their stomata. The stomata of plants are opened for a small period of time so as to allow photosynthesis to take place then it closes back so that the plant do not lose excessive amount of water.
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