Section C: Give a short answer to the question given below.
29.B. (i) What is double circulation?
(ii) Why is the separation of the right side and the left side of the heart useful ? How does it help birds and mammals?
(ii) Why is the separation of the right side and the left side of the heart useful ? How does it help birds and mammals?
i. Double circulation refers to the process in which . This process involves two pathways: . It is a vital aspect of the circulatory system in birds and mammals.
ii. The separation of the heart into the right and left sides is essential for maintaining the separation of . In mammals and birds, the heart increases the efficiency of oxygen delivery to the body tissues. The side receives deoxygenated blood from the body and pumps it to the lungs, while the receives oxygenated blood from the lungs and pumps it to the rest of the body. This separation ensures that oxygen-rich and oxygen-poor blood do not mix, allowing efficient oxygen delivery to the body tissues.