Very small animals are rarely found in polar regions because ........

Environment and Ecology NCERT

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Very small animals are rarely found in polar regions because.

They have to spend more energy to generate body heat through metabolism

They have difficulty finding enough vegetation for their survival.

They tend to lose body heat very slowly when it is cold outside

In polar regions predators are more in numbers.

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Explanation:

They have larger surface area as compared tovolume. So they tend to lose heat very fast when it is cold outside, then they have to spend more energy to generate body heat through metabolism.. This is the main reason why very small animals are rarely found in polar regions.