Answer:
Step-by-step explanation:
Platyhelminthes and Nematoda are two phyla of animals made up of invertebrate worms. Although both strains are made up of worms, the two types of worms are not closely related. The main difference between Platyhelminthes and Nematoda is that Platyhelminthes is made up of flatworms with a thin, dorso-ventrally flattened body, while Nematoda is made up of a cylindrical body that tapers to fine ends at each end. Tapeworms, Turbellaria, Trematoda, and Monogenea are examples of Platyhelminthes. Secernentea, Enoplea, Chromadoria and Adenophorea are the examples of the nematodes. The flatworm Planaria and the roundworm Caenorhabditis elegans are the best-studied worms in the laboratory.