crysstalrose1512
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  • 26-04-2021
  • Biology
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What are the different worm phylums? Describe the differences between the three and give examples for each.

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canelabasc canelabasc
  • 26-04-2021
The three main worm phyla are flatworms, roundworms, and segmented worms. Roundworms have a digestive tube that has two openings. Segmented worms have a closed circulatory system in which blood is enclosed in blood vessels. These are important steps in the evolutionary development of animals.
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