Question

Adaptive radiation refers to

(a) evolution of different species from a common ancestor

(b) migration of members of a species to different geographical areas

(c) power of adaptation in an individual to a variety of environments

(d) adaptations due to geographical isolation.

Answer 1

Option a is correct

Explanation: Adaptive radiation (divergent evolution) is the evolution of one species of animals or plants of a number of different forms. As the original population increases in size, it spreads out from its center of origin to exploit new habitats and food sources.

In time this results in a number of populations each adapted to its .particular habitat: eventually, these populations will differ from each other sufficiently to become new species.