What evidence is there that the 15 species of finch all evolved from one common ancestor?(1 point)

Question

Responses

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.

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.

Scientists have been studying them since Darwin in 1835 and have watched them evolve.
Scientists have been studying them since Darwin in 1835 and have watched them evolve.

DNA analysis shows that their DNA is almost identical with only minor changes.

Answer 1

The most compelling evidence that the 15 species of finch all evolved from one common ancestor is:

DNA analysis shows that their DNA is almost identical with only minor changes.

This genetic evidence suggests a close evolutionary relationship among the species, indicating that they have diverged from a common ancestor over time. While the other statements provide supportive context, such as geographic isolation and observable morphological similarities, the genetic data is the strongest evidence for their common ancestry.