Which of the Following are Vestigial Structures

Question

Which of the following are vestigial structures?
A) Fish fins
B) Hoofs of horses
C) Wings of bats
D) Pelvic bones of whales
E) Vertebral columns in snakes

Accepted Answer

Pelvic bones of whales are considered vestigial structures because they are remnants of hind limbs from their land-dwelling ancestors and serve no significant function in modern whales.