Question

why is variation beneficial to the species but not necessarily for the individuals​

Answer 1

Answer:

The variation is important and beneficial for species as it allows a species to adapt to a changing environment. Only those who adopt the changes can survive in harsher conditions by adapting to the changes. For an individual, the variation doesn't matter in most of the conditions

Answer 2

$\huge\underline\red{Answer}$✨✨

Variations can be beneficial or harmful according to the ecological niche of the organism. A variation suitable for the particular niche is selected by nature in evolution. Thus variations are necessary for the survival of the species. Variation is important for evolution of the species.

E.g.: A population of heat resistant bacteria in temperature of the water survives, if the temperature of water increases by global warming but most other bacteria would die.