Question

in birds and mamnals the and right side of the heart are separated give reason​

Answer 1

Answer:

Mammals and birds, however, have a higher metabolic rate so must have a way of delivering more oxygen per litre of blood to the body than amphibians..

Explanation:

The mammalian heart has a fully formed septum that separates the atria and the ventricles. Deoxygenated blood enters the right atrium, which is then pumped to right ventricle, of which is then pumped to the pulmonary artery to be reoxygenated by the lungs. It then returns to the left atrium and leaves through the left ventricle, and pumped using the largest artery in the body, the aorta.

In mammals, the right side of the heart collects de-oxygenated blood, into the right atrium from the body and pumps it via the right ventricle into the lungs. This is called the pulmonary circulation. that Carbon dioxide is dropped off and oxygen picked up by a passive process of diffusion allowing the gas exchange to occur. The left side collects oxygenated blood from the lungs into the left atrium, where it is pumped throughout the body via the aorta.