henry8515 henry8515
  • 27-05-2017
  • Biology
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Why is it said that the earthworm has a closed circulatory system?

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anjalika
anjalika anjalika
  • 27-05-2017
The earthworm has a closed circulatory system. An earthwormcirculates blood exclusively through vessels. There are three main vessels that supply the blood to organs within the earthworm. These vessels are the aortic arches, dorsal blood vessels, and ventral blood vessel
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