Circulatory system in annelids
Name the kind of circulatory system existed in annelids?
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In beings of phylum Annelida the circulatory system is closed, that is, blood circulation occurs only in specialized vessels.
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This is one that is deliberately created to perform a specific task. Members are usually appointed by the organization, but it may not always be the case. A number of people assigned to a specific task form a formal group. One example of such a group sis a committee and other examples are work un
Beings from four phyla of animal kingdom “breath” (do gas exchange) by the diffusion. Which are such phyla? How is this kind of respiration related to features existed in such animals?
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