Question

Nematodes have a distinctive difference from the flat worms. Describe the differences between the flat worms and the round worms?

Answer 1

Flatworms and roundworms are two types of worms. Roundworms belong to the phylum Nematoda while Flatworms belong to the phylum Platyhelminthes. Flatworms have flat thin body whereas roundworms have a cylindrical body tapered at each end. Flatworms have only one digestive opening (pharynx) while nematodes have a complete digestive tract with two openings. Flatworms have three body layers but do not have body cavities while nematodes have pseudocoelomate - a cavity between endoderm and mesoderm.