The animals such as mammal have four chambered heart this organisation help in efficient supply of O2 in the body is the fat is to provide a suitable explanation to validate
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The heart is divided into four chambers consisting of two atria and two ventricles; the atria receive blood, while the ventricles pump blood.
The right atrium receives blood from the superior and inferior vena cavas and the coronary sinus; blood then moves to the right ventricle where it is pumped to the lungs.
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