AP BIOLOGY

Detailed explanation-1: -As different populations of finches occupied these niches, they evolved adaptations that enabled them to survive in the different habitats. Thus, in a relatively short period of time, many different species of finches evolved from a single ancestral population, a process called adaptive radiation.

Detailed explanation-2: -Still other finches have medium-size beaks that can catch and grasp insects. Because they are isolated, the birds don’t breed with one another and have therefore developed into unique species with unique characteristics. This is called allopatric speciation.

Detailed explanation-3: -What types of reproductive isolation may have been important in the Galapagos finch speciation? Explain. Speciation in Galapagos finches could have occured by the finding of a new population, geographic isolation, changes in the new population’s gene pool, behavioral isolation, and ecological competition.

Detailed explanation-4: -Speciation in the Galápagos finches occurred by founding of a new population, geographic isolation, changes in the new population’s gene pool, reproductive isolation, and ecological competition.

Detailed explanation-5: -Speciation in Darwin’s Finches In this hypothesis, speciation in Galápagos finches occurred by founding of a new population, geographic isolation, changes in the new population’s gene pool, behavioral isolation, and ecological competition.