Question Detail
Question
How many cervical vertebrae do humans, rabbits, and rats all share in common?
Correct Answer
Option B is the correct answer.
Detailed Explanation
Humans, rabbits, and rats all have exactly 7 cervical vertebrae. This is a characteristic feature of almost all mammals, regardless of neck length; giraffes also have 7 cervical vertebrae, though each is greatly elongated.
Hint
Almost all mammals have the same number of neck vertebrae, regardless of neck length.