A) Homoiothermy
B) Internal fertilization
C) Presence of a 4-chambered heart
D) Presence of a muscular diaphragm
Correct Answer: D
Solution :
A complete muscular partition separates the thoracic cavity housing the heart and the lungs from the abdominal cavity containing all other viscera. This is called the diaphragm. It increases the efficiency of breathing.
You need to login to perform this action.
You will be redirected in
3 sec
