The main difference between flatworms and roundworms is that flatworms consist of a dorso-ventrally flattened body whereas roundworms consist of a cylindrical body tapered to a fine point at each end. Both roundworms and tapeworms are triploblastic animals with bilateral symmetry. 20 дек. 2017 г.
What do roundworms have that flatworms do not?
Roundworms have a round body because they have a partial fluid-filled body cavity (pseudocoelom). This is one way that roundworms differ from flatworms. Another way is their complete digestive system. It allows them to eat, digest food, and eliminate wastes all at the same time.
What are two features of roundworms that flatworms don't have?
Features of RoundwormsUnlike the flatworms, the roundworms have a body cavity with internal organs.A roundworm has a complete digestive system, which includes both a mouth and an anus. ... Roundworms also have a simple nervous system with a primitive brain.Roundworms | CK-12 Foundation
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