To adjust blood pressure independently in the capillaries of the gas-exchange surface and in the capillaries of the general body circulation, an organism would need a d) Four chambered heart
Four chambered heart is able to adjust blood pressure independently in the capillaries of the gas-exchange surface and in the capillaries of the general body circulation in an organism.
The presence of four chambers in the Heart provides an efficient flow of the blood in the atria and ventricle. There are two atrium in the heart, one is left atrium and the other is right atrium, and  there are two ventricles in the heart namely the left ventricle and the right ventricle.
The four chambers of the heart do not allow the mixing of the blood for efficient management.
The oxygenated blood flows through the left side of the heart and the right side of the heart carries the deoxygenated blood.
Adjustment of the blood pressure independently in the capillaries requires the presence of four chambers.
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