Question Detail

ZOO 101 ZOO 101 Past Questions Objective Question

Question

The evolutionary transition from reptilian to mammalian ear bones involved:
Options
A The articular-quadrate bones
Correct Answer
B The maxilla
C The zygomatic arch
D The temporal bone
Correct Answer

Option A is the correct answer.

Detailed Explanation

The transition involved the articular and quadrate bones of the reptilian jaw becoming the malleus and incus (middle ear bones) in mammals. This is a classic example of evolutionary modification.

Hint

These bones shifted from the jaw to the middle ear during evolution.

Question Info