why open type of circulatory system is not found in large animals?
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open type of circulatory system is not found in large animal because if it's open system then how blood will reach to upper body parts. large animal can't stand up side down
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In open circulatory system there are no blood vessels to carry blood. The heart pumps the blood and all the organs are submerged into the liquid and blood mixture. It is usually in arthropods.
EXPLANATION:
Human body requires more oxygen to function. So there are separate paths for 'oxygenated blood' and 'deoxygenated blood'. Also there are complex organs and are located at distant part from the blood. So in order to carry blood to these organs a special closed channel is required and the blood pressure of large animal is very high.
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