Question

Name the different types of phyla and their circulatory systems​

Answer 1

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There are two main types of circulatory systems: open circulatory systems and closed circulatory systems. Open circulatory systems are systems where internal organs and body tissues are surrounded by circulatory fluid.

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Answer 2

Explanation:

With the exception of the cephalopods members of the phylum mollusca have an open circulatory system. The chambered myogenic heart normally has a pair of posterior auricles draining the gills and an anterior ventricle that pumps th the blood through the anterior aorta to the tissue sinuses, excretory organs and gills