Which of the following statements on the mammalian circulatory system is NOT true?
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- A Blood in the pulimonary artery is richer in oxygen content than blood in the pulmonary vein
- B The blood in the hepatic portal vein is the richest in food substance
- C Blood flow is controlled by valves in the veins
- D Arteries are generally thicker and larger than veins
- E Fibrin helps in the formation of blood clot
Correct Answer: Option A
Explanation:
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