In which geographical region is marsupial radiation observed?

Adaptive radiation refers to ..........

Write a short note on Adaptive Radiation and the Marsupials of Australia.

The process of evolution of different species in a given geographical area starting from a point and radiating to other geographical areas is called .........

Darwin's finches are a good example of

Assertion : Darwin's finches show a variety of beaks suited for eating large seeds,flying insects and cactus seeds.
Reason : Ancestral seed-eating stock of Darwin's finches radiated out from South American mainland to different geographical areas of the Galapagos Islands,where they found competitor-free new habitats.