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What are the benefits of closed circulatory system

What are the benefits of closed circulatory system over open circulatory system?

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The closed circulatory system is more proficient. As blood circulates simply within blood vessels it can do it with much pressure reaching beyond distances between the organs where hematosis occurs and the peripheral tissues. Additionally, the circulatory speed as well heightens making possible much oxygen supply to great consuming tissues, such as the muscle tissues which then can execute faster movements. The Animals with an open circulatory system (that is, with the exception of insects which do gas exchange separately from the circulation) are usually slower and contain a low metabolic rate.

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