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(D) The finches of the Galapagos islands are a classic example of $Adaptive 	ext{ } Radiation$. Charles Darwin observed that many varieties of finche

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Biogeographical evolution

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(D) The finches of the Galapagos islands are a classic example of $Adaptive 	ext{ } Radiation$. Charles Darwin observed that many varieties of finches were present on the same island. All these varieties evolved from a single original seed-eating ancestral species that migrated to the island from the mainland. Over time, they underwent adaptive changes in their beak structures to suit different feeding habits (e.g., insectivorous, vegetarian). This process of evolution of different species in a given geographical area starting from a point and radiating to other areas of geography is called $Adaptive 	ext{ } Radiation$. This is a clear evidence of $Biogeographical 	ext{ } evolution$ as it demonstrates how species adapt to different ecological niches within a specific geographical region.

The finches of Galapagos islands provide evidence in favor of which of the following?

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