Fishes have two chambered heart.

Do all reptiles have three chambered heart?

similar to mammals , _____ also have four chambered heart.

Assertion (A) : In closed circulatory system blood is pumped by the heart and flows through blood vessels. Reason (R) : All vertebrates have muscular chambered heart.

Identify the animal having four chambered heart.....................

Why three chambered heart of frog is not as efficient as the four chambered heart of birds and mammals?

Which one of the following sets of animals share a four chambered heart ?

Identify the correct statements from the below about "Mammals". (1) Presence of mammary glands is the 'unique feature of mammals. (II) Have two pairs of limbs. (III) Have three chambered heart. (IV) External cars or pinnae are present.

Which is not a four chambered heart?

The characteristics given below are associated with (i) Body is covered by dry and cornified skin, epidermal scales or scutes (ii) They have no external ear (iii) Crawling, creeping habit (iv) 2 chambered heart.