State true or false:
Deoxygenated blood is carried back to heart by veins.

Deoxygenated blood is pumped by the heart in

Oxygenated blood is carried to the heart by which of the following?

In frog, deoxygenated blood is received by

Deoxygenated blood from wall of heart is carried by

Read the assertion and reason carefully to mark the correct option out of the options given below: (a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion (c) If the assertion is true but the reason is false (d) If both the assertion and reason are false (e) If the assertion is false but reason is true Assertion : Heart of fish contains only deoxygenated blood. Reason : Oxygenated blood do not return back to the heart in fishes.

A portion of cardiovascular system that transport oxygen depleted blood from the heart to the lungs and brings oxygenated blood back to heart is