Q.

Which of the following blood vessels in the circulatory system of frog has more deoxygenated blood
 a) Pulmonary artery                         b)    Precaval veins
 c) Pulmocutaneous artery                d)    Pulmocutaneous vein

1 A
2 B
3 C
4 D

Ans.

(a) In frog, pulmonary artery is a paired artery that carry more deoxygenated blood from the right ventricle of the heart to the lungs.