Question
What evidence is there that the 15 species of finch all evolved from one common ancestor?(1 point)
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.
DNA analysis shows that their DNA is almost identical with only minor changes.
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1 answer
The best 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 statement provides strong scientific evidence of their common ancestry through genetic similarity. It suggests that despite variations in observable traits, such as beak size and shape, the underlying genetic material is very similar, indicating a shared lineage.
