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Yes, they have a closed circulatory system, meaning that their blood is always contained by the heart or blood vessels.

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10y ago

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What type of circulatory system does an annelid worm have?

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Which part of the annelid circulatory system is associated with muscles responsible for pumping blood?

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What are facts of an annelids circulatory system?

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What system is the heart apart of?

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What system of the human body is made of blood?

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The what system includes heart?

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