Final answer:
Systemic circulation carries oxygen-rich blood away from the heart to the body and returns oxygen-poor blood back to the heart. Pulmonary circulation transports blood between the heart and the lungs for gas exchange.
Step-by-step explanation:
The correct answer is option Biology.
Systemic circulation refers to the part of the cardiovascular system that carries oxygen-rich blood away from the heart to the body and returns oxygen-poor blood back to the heart. It delivers oxygen and nutrients to all the tissues and organs in the body. The blood travels from the left ventricle through the aorta, then to the body's organs and tissues via arteries, and returns to the heart through systemic veins.
Pulmonary circulation, on the other hand, is the portion of the cardiovascular system that transports blood between the heart and the lungs. Its main function is to exchange carbon dioxide for oxygen. Blood low in oxygen is pumped from the right ventricle to the lungs through the pulmonary arteries. In the lungs, the blood picks up oxygen and releases carbon dioxide. Oxygenated blood then returns from the lungs to the left atrium of the heart via the pulmonary veins.