The different species of finches on the Galapagos Islands are believed to have arisen as a result of natural selection acting on populations of finches that had experienced: a. Convergent evolution b. Gene flow c. The bottleneck effect d. Geographic isolation

geographic isolation

Explanation:

Due to the geographic isolation experienced by these population of finches, they therefore developed beaks adapted to the food source available to them dude to natural selection. Thus the successful finches had the useful beach needed for their survival on the various highland and then reproduced among themselves fixing that adaptation thus giving rise to difference populations of finches long on the various islands of the galapagos.