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Answer:

Speciation in Galapagos finches occurred by founding of a new population, geographic isolation, changes in the new population's gene pool, behavioral isolation and ecological competition.

Explanation:

Geographical limitations include the natural factors or the water bodies like ocean, sea, rivers etc. that divide a place from another is called geographical barrier.

Galapagos finches are recognised as Darwin finches because he discovered them on the Galapagos island.

  • There is an unusual difference in their beak structure and purposes even though they reside on the same island.

  • Speciation in finches transpired due to geographic separation, the modification in the population gene, ecological conflicts.

  • When the species of finches were restricted to a specific area and could not mate resulted in isolation and hence variation.

To learn more about Speciation and Darwin Finches follow the link:

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