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Assertion:- Very small organisms rarely ...

Assertion:- Very small organisms rarely found in polar regions.
Reason:- Small animals have a larger surface area relative to their volume, they tend to lose body heat very fast when it is cold outside.

A

If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.

B

If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion

C

If Assertion is True but the Reason is False.

D

If both Assertion & Reason are false.

Text Solution

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The correct Answer is:
A
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(A) : Small animals have a larger surface area relative to their volume. (R) : They tend to lose body temperature very slowly when it is cold out side.

Very small animals are rerely found in polar regions because

Assertion: Very small animals are rarely found in polar regions. Reason: Smaller animals have larger area to volume ratio, they tend to lose heat very fast when it is cold outside then they have to expend much energy to generate body heat through metabolism.

Assertion : Small sized animals are rarely found in polar regions. Reason : Small sized animals have larger surface area relative to their volume and they have to spend much energy to generate body heat through metabolism.

Explain why very small animals are rarely found in polar region.

Assertion: Small animals tend to lose body heat very fast when it is cold outside. Reason: Small animals have a larger surface area relative to their volume.

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(A) : Polar region is not a suitable habitat for small humming birds. (R) : They tend to loose body heat very fast when it is cold outside.

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