The fact that small,nonfunctioning hind legs are found in the skeletons of many snakes suggests that snakes
A) are in the process of evolving legs.
B) evolved from organisms with legs.
C) are really populations of lizards with one or more severe mutations in limb development.
D) evolved from eels (snakelike fishes).

Question

Quizplus · Accepted Answer

The presence of small, non-functioning hind legs in the skeletons of many snakes suggests that snakes evolved from organisms with legs. This is supported by the fact that some modern-day snakes still have small hind legs that are capable of limited movement, such as the boa constrictor. This is seen as a vestigial trait - a leftover from their evolutionary history.

The Fact That Small,nonfunctioning Hind Legs Are Found in the Skeletons