why are variation beneficial to the species but not necessarily for the individual
Answers
Variation are some genetic changes that help an organism to adapt to various changes in its habitat or niche
For e.g
Consider a group of bacteria living in water and suddenly the temperature of water rises due to global warming. Many species of bacteria will die since they cannot acclimatise however if variation is present in two or more bacterias it would help them to colonise in other place
Hence variation is not beneficial for a INDIVIDUAL ORGANISM but it benefits the specie.
Hope it helps!!
♤ 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.