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

The NCERT line that answers it

Verbatim line

This process of evolution of different species in a given geographical area starting from a point and literally radiating to other areas of geography (habitats) is called **adaptive radiation**.

Chapter: Evolution
Section: 6.4 WHAT IS ADAPTIVE RADIATION?
Page: 7
Words matched: 29 of 29

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span explicitly states 'evolution of different species' and describes them radiating from a common starting point, which directly matches option A's definition of adaptive radiation as evolution of different species from a common ancestor.

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