human roundworm

Is An Earthworm A Roundworm?

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Is An Earthworm A Roundworm? The basic difference between them is that Earthworms are segmented invertebrates belonging to the phylum Annelida, Tapeworms are flatworms belonging to the phylum Platyhelminthes, and Roundworms are parasitic worms belonging to the phylum Nematoda. What is the difference between earthworm and roundworm? An earthworm has a full digestive system and

Do Roundworms Have Three Tissue Layers?

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Do Roundworms Have Three Tissue Layers? Do roundworms have three tissue layers? germ layers Do roundworms have tissues? They have a mesoderm layer in addition to ectoderm and endoderm layers. The mesoderm layer allows flatworms to develop muscle tissues so they can move easily over solid surfaces. Flatworms have a concentration of nerve tissue in