In land mammals, the pelvic girdle is the point where the leg bones attach to the rest of the skeleton. Whales also have a small pelvic girdle. This would be an example of what type of evidence for common descent?
A) a homologous gene
B) a homologous structure
C) fossil evidence
D) a vestigial structure

Question

Quizplus · Accepted Answer

The presence of a small pelvic girdle in whales, which is not used for attachment to legs, is an example of a vestigial structure. This is evidence for the common descent of whales from land mammals, as their ancestors likely had a functional pelvic girdle for walking on land.

In Land Mammals, the Pelvic Girdle Is the Point Where