The Galapagos Islands are associated with which scientist?

In Australia,marsupials and placental mammals have evolved to share many similar characteristics. This type of evolution may be referred to as

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.

Darwin's finches were a good example of

What do Darwin's finches represent?

Which of the following is a classic example of adaptive radiation?