EVERYDAY SCIENCE

Detailed explanation-1: -Birds and mammals, however, have a fully septated ventricle–a bona fide four-chambered heart. This configuration ensures the separation of low-pressure circulation to the lungs, and high-pressure pumping into the rest of the body.

Detailed explanation-2: -Mammals and birds, for example, have four-chambered hearts, with two ventricles and two atria. Frog, crocodile, ostrich, pigeon, bat, and whale all have four chambers in their hearts.

Detailed explanation-3: -Birds and mammals have four-chambered hearts, having two atria and two ventricles. Reptiles, except crocodile, have a three-chambered heart. Crocodiles have a four-chambered heart.

Detailed explanation-4: -The four chambers of the heart On each side of the wall, there is a small collecting chamber called an ‘atrium’, which leads into a large pumping chamber called a ‘ventricle’. There are four chambers: the left atrium and right atrium (upper chambers), and the left ventricle and right ventricle (lower chambers).

Detailed explanation-5: -The cockroach has a thirteen chambered tubular heart. Note:-The heart of the cockroach is present in the pericardial sinus which is one of the divisions of the body cavity.