The finches represent an example of directional trend in beak size from small to big

Beak shapes changed in response to different seed types and these changes were inherited by subsequent generations

The ancestral finch already had all the beak variations and different lineages formed that were specialized to eat different seed

The finches represent an example of adaptive radiation in which beak variation was generated by mutation followed by selection by different seed types

The Galapagos finches were an important clue to Drawin's thinking about the origin of species. These finches are  believed to have descended from a single ancestral species that colonized the Galapagos archipelago, America, over a  short period of time. The Galapagos finches differ in their beak shape and size. Different species feed on seeds that vary in  size and hardness Which of the following is the most likely explanation for these patterns?

The Galapagos finches were an important clue to Darwin's thinking about the origin of species. These finches are believed to have descended from a single ancestral species that colonized the Galapagos archipelago, America, over a short period of time. The Galapagos finches differ in their beak shape and size. Different species feed on seeds that vary in size and hardness Which of the following is the most likely explanation for these patterns?&nbsp;

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M.Sc. Entrance

CSIR NET

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