8. Which of the following statements is CORRECT? a. Arteries carry blood away from the heart while veins carry blood towards the heart. b. Arteries are covered with layers of muscles while veins are not. Aorta is the biggest vein that transports blood all throughout the body. d. Arteries, Veins and Capillaries are sites of gas exchange. هن و
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Answer:
Apo
Explanation:
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