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Natural selection is the outcome of diff...

Natural selection is the outcome of difference in survival and reproduction among individuals that show variation in one or more traits.
Reason : Adaptive forms of a given trait tend to become more common, less adaptive ones become less common or disappear.

A

If both assertion and reason are true and reason is the correct explaination of assertion

B

If both assertion and reason are true but reason is not correct explaination of assertion

C

If assertion is true but reason is false

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
A
The Darwin Wallance theory of natural selection can be generalised as the change in species by the survival of an organismal type exhibiting a natural variation that gives it an adaptive advantage in an environment.Thus leading to a new environmental equilibriu,.The idea of the survival of the fittest explain the above evolution by nature selection.According to survival of fittest,some of the variations exhibitted by living things make it easier for them to survive and reproduce thus more adaptive froms increase.Those which are not fir (or less adaptive)become eliminated.
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