Question 14
Transport in AnimalsWhich of the following heart structures is best adapted to cope with double circulation?
- A.One auricle and one ventricle
- B.Two auricles and one ventricle
- C.Two auricles and partially divided ventricle
- D.Two auricles and two ventricles
Show the answer and explanation
Answer: D (Two auricles and two ventricles)
Explanation
Four chambers keep oxygenated and deoxygenated blood completely apart, so the right side pumps to the lungs and the left side to the body.