Question

select the correct answer from each drop - down menu.
the dna of humans and mice is almost 92% similar. this similarity indicates that mice share a common ancestor with humans. mice have a tail, while humans have a tailbone. the tailbone is a

homologous
vestigial
analogous

structure in humans.
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Explanation:

• Vestigial structure: A vestigial structure is a remnant of a structure that had a function in an early ancestor. In humans, the tailbone (coccyx) is a vestigial structure. It is a remnant of a tail - like structure that was present in our ancestors.
• Common ancestor: The high similarity (92%) in DNA between humans and mice indicates that they share a common ancestor. Over time, as evolution occurred, different traits developed, but the genetic similarity remains as evidence of a shared evolutionary past.

Answer:

The tailbone is a vestigial structure in humans. Mice share a common ancestor with humans.