Question

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

Answer 1

Variations are beneficial for the survival of the species.Populations of organisms fill well-defined places, or niches, in the ecosystem, using their ability to reproduce. However, niches can change because of reasons beyond the control of the organisms and could even wipe out the entire population. However, if some variations were to be present in a few individuals in these populations, there would be some chance for them to survive.For example - If there were a population of bacteria living in temperate waters and suppose the water temperature were to be increased by global warming. Most of these bacteria would die, but the few heat resistant variants would survive and grow further. Variation is thus useful for the survival of species over time.

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.