Question

Creations of variation in a species promote survival . how?

Answer 1

If their is some variation in the species it will have more chances of survival.

Like due to climatic changes all the animals of d=same specie died but animal with some variation will have some chances of survival.

Answer 2

Explanation:

All the variations in the species do not have equal chances of survival in the environment. The survival of the variations depends upon the nature of variation. Different individuals have different chances. Selection of variants by environmental factors forms the basis for evolutionary processes. These variations may lead to increased survival advantages of the individuals due to positive adoption of traits or may merely contribute to the genetic drift.