A hookworm is actually a type of roundworm, and a roundworm is in the phylum Platyhelminthes.
Pinworms belong to the phylum Nematoda, which consists of roundworms, while hookworms also belong to the same phylum Nematoda.
It's a Nematoda
The phylum bulldogs belong in is, Chordate.
Echinoderms belong to the phylum Echinodermata.
Hornworts belong to the phylum Anthocerotophyta.
Cockroaches belong to the phylum Arthropoda.
The Phylum Nematodes is home to large number of organisms. The hookworm, whipworm, and pinworms are very familiar to pet owners and can infect humans.
Animals belonging to the phylum Nematoda are commonly known as roundworms. They include species like Caenorhabditis elegans, Ascaris lumbricoides (human roundworm), and various parasitic worms found in soil, animals, and humans. Nematodes are characterized by their long, slender, unsegmented bodies with a covering called a cuticle.
Nematoda
Cnidaria
Pinworms belong to the Nematode group of worms.
It's a Nematoda
aschelminthes
Horsehair worms are found under the Phylum Nematomorpha (Pechenik, 2010). Their defining characteristic is that they are pseudocoelomates lacking a functional digestive tract in the adult stage. There are about 320 freshwater species and 5 marine species described so far.
Vertebrates belong in the phylum Chordata.
"Round Worms" , ex. pinworms and hook worms
Deer belong to the phylum 'Chordata'.
Vertibrates belong to the phylum chordara