Multiple choice

Which of the following statements regarding mammals is correct?

A. Mammals have double occipital in their skull

B. Left aortic arch is seen in mammals

C. Order cetacea includes some aquatic mammals

  1. A and B

  2. B and C

  3. A, B and C

  4. A and C

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Mammals are characterized by a double occipital condyle, the presence of a left aortic arch (the right is lost), and the order Cetacea includes aquatic mammals like whales and dolphins.