Question

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Why is variation beneficial to the species but not necessary for a individual ?

Answer 1

Variation in species help them to survive in this world of competition. In order to survive evolution is necessary because the survival is only possible if there is a potential of it. This potential is derived by the evolution.
While for an individual , it is not important because all the species of that individual is living without any difficulty . Also,why anot individual needs an evolution but not the whole species???? So variation is necessary for and beneficial for the species but not for an individual.....

Answer 2

♤ A species include large no. Of individuals of same kind. All the organisms of a species have similar body design and well adapted to the place.

♤ If there is a variation arise from the individual it might not be beneficial to it, even this variation may lead to the death of the individual.

♤ but the variation may be beneficial if the species faces a drastically altered condition.

♤ In this condition the population may wiped out completely but of some variation are there few individual can survive and thus variation is beneficial for the species.