the members belonging to which class and phylum have closed circulatory system
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Explanation:
Annelida and Arthropoda
The closed circulatory system pumps blood throughout the length of the worm's body. Annelids generally have a well-developed body cavity, an excretory system, and a nervous system with a primitive brain.
Answer:
Annelida and Arthropoda
The closed circulatory system pumps blood throughout the length of the worm's body. Annelids generally have a well-developed body cavity, an excretory system, and a nervous system with a primitive brain.