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Darwin's finches are a good example of
A
Convergent evolution
B
Industrial melanism
C
Connecting link
D
Adaptive radiation
Detailed Solution
On the Galapagos Islands Darwin observed many varieties of small black birds, later called Darwin's finches.
All the varieties evolved on the islands themselves from an original seed-eating stock; forms with altered beaks arose, enabling them to become insectivorous and vegetarian finches.
This process of evolution of different species in a given geographical area, starting from a point and literally radiating to other habitats, is called adaptive radiation.
Convergent evolution is the reverse case, in which unrelated groups come to resemble each other; industrial melanism is an example of natural selection in moths.
Hence Darwin's finches are a good example of adaptive radiation.
All the varieties evolved on the islands themselves from an original seed-eating stock; forms with altered beaks arose, enabling them to become insectivorous and vegetarian finches.
This process of evolution of different species in a given geographical area, starting from a point and literally radiating to other habitats, is called adaptive radiation.
Convergent evolution is the reverse case, in which unrelated groups come to resemble each other; industrial melanism is an example of natural selection in moths.
Hence Darwin's finches are a good example of adaptive radiation.