Define closed circulatory system
Define closed circulatory system?
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A closed circulatory system is one in which blood circulates merely within blood vessels. For this reason the blood pressure is more in animals with closed circulatory system. The cellularity of the blood is too higher with numerous specific blood cells.
The closed circulatory system is a characteristic of annelids, cephalopod molluscs and vertebrates.
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General instructions regarding the structure and the content of the paper: The main paper should be, at minimum, 5000-8000 words in length. The abstract and the bibliography ought to be treated as separate
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