why variation is beneficial to species but not necessary for an individual
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Variation are benefical for the survival of species.Population of organism filled, well defined place, or niches in the ecosystem using their ability to reproduce.However , niches can be changed because of reasons beyond the control of the organisms and could even wipe out entire population.
♤ 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.