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. What type of evidence for common descent would include the whale's pelvic girdle?
A) a homologous gene
B) a homologous structure
C) fossil evidence
D) a vestigial structure

Question

Quizplus · Accepted Answer

The presence of a vestigial structure, such as the pelvic girdle in whales, is strong evidence for common descent. It suggests that whales evolved from ancestors that had a functional pelvic girdle, which became reduced over time as whales evolved adaptations for aquatic life.

In Land Mammals, the Pelvic Girdle Is the Point Where