how the variation beneficial for the species not for individuals
Answers
Populations of organisms normally live and interact with definite kinds of ecological niches. A population, therefore, survives in a particular surrounding. If there is an alteration in the ecological conditions of such places, the population of organisms will get damaged and wiped out. The variants of the organism, however, may have chances of survival. The surviving individuals may reproduce and develop a kind of population which is suited to the changed niche. Thus variation is beneficial to the species not necessary for the individual.
♤ 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.