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Closed circulatory system

Explain the closed circulatory system?

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Closed circulatory system is the one in which the blood only circulates within the blood vessels. For this particular reason, pressure of the blood is higher in the animals having closed circulatory system. Cellularity of blood is also higher with several specific blood cells. Closed circulatory system is an attribute of the cephalopod molluscs, annelids, and vertebrates.

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