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.
This is the last step of Taxonomy. The scientific method used in research involves observation, deduction and verification. The research methodology, i.e. the formation of objectives, developing hypothesis, collection of date, analysis and interpretation of data and i
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