Question Detail

ZOO 101 ZOO 101 Past Questions Objective Question

Question

The mammalian middle ear bones are believed to have evolved from:
Options
A Skull bones
B Reptilian jaw bones
Correct Answer
C Limb bones
D Vertebral bones
Correct Answer

Option B is the correct answer.

Detailed Explanation

Mammal's inner-ear bones probably evolved from modified ancestral reptile jaw bones, demonstrating a classic example of evolutionary modification of structures.

Hint

Consider which ancestral bones were repurposed into auditory structures.

Question Info