Unsegmented Worms
The common name for phylum Nematoda is roundworms.
Nematodes are divided into two classes; Andenophorea and Secernentea and their phylum is Nematoda.
Roundworms
Scientific classification: Roundworms make up the phylum Nematoda.
Nematodes are in the Phylum Nematoda, which should be no surprise. The name means roundworms and includes worms such as, the ascaris, hookworms, pinworms, and trichenella.
The scientific name for round worms is "nematodes."
It's a Nematoda
A hookworm belongs to the Phylum Nematoda, which includes roundworms.
Roundworms belong to the phylum Nematoda.
Roundworms (scientific name: Nematoda) are invertebrates, as they do not have a spine.
The parasitic roundworm (scientific name: Nematoda) is an invertebrate.
Flatworms belong to the phylum platyhelminthes.