Question What evidence is there that the 15 species of finch all evolved from one common ancestor?(1 point) Responses DNA analysis shows that their DNA is almost identical with only minor changes. DNA analysis shows that their DNA is almost identical with only minor changes. Observation of all 15 species shows that they look incredibly similar, with minor changes to beak size and shape. Observation of all 15 species shows that they look incredibly similar, with minor changes to beak size and shape. These 15 species are found nowhere else in the world, and the islands are located close enough to the mainland for birds to migrate. These 15 species are found nowhere else in the world, and the islands are located close enough to the mainland for birds to migrate. Scientists have been studying them since Darwin in 1835 and have watched them evolve.
DNA analysis is one piece of evidence that supports the idea that the 15 species of finch evolved from one common ancestor. This is because the DNA of these species is almost identical, with only minor changes. Additionally, observation of all 15 species shows that they look incredibly similar, with minor changes to beak size and shape. Furthermore, the fact that these 15 species are found nowhere else in the world and that the islands they inhabit are located close enough to the mainland for birds to migrate also supports the idea of common ancestry. Finally, scientists have been studying these finches since Charles Darwin's visit to the Galapagos Islands in 1835 and have observed their evolution over time, providing further evidence for their shared ancestry.
