Kingdom: Anamalia Phylum: Annelida Class: Polychaeta
Annelida, along with earthworms
NEMATODA NEMATODA
Nematoda
The phylum that includes segmented worms is known as Annelida. These phylum is believed to have over 17,000 species of different organisms.
there is none
It depends on your definition of 'worm'. Earth worms and water worms both belong to the Phylum Annelid, if all Annelids are worms then water worms are worms.
Annelida, along with earthworms
mutalism
They use them to clean
sealoid
Yes
Annelida phylum
it is Phylum Annelida.
Annelida
There are far too many invertebrate species to list. Note that there are far more invertebrate species than vertebrate species. However, I here are a list of invertebrate phyla: Acanthocephala (a phylum of worm) Acoelomorpha (a phylum of worm) Annelida (a phylum of worm) Arthropoda (spiders, crabs, etc) Brachiopoda Bryozoa Chaetognatha (a phylum of worm) Cnidaria (corals, sea anemones, jellyfish, etc) Ctenophora (comb jellies) Cycliophora Echinodermata (sea urchins, starfish, etc) Echiura (a phylum of worm) Entoprocta (a phylum of worm) Gastrotricha Gnathostomulida (a phylum of worm) Hemichordata (a phylum of worm) Kinorhyncha Loricifera Micrognathozoa Mollusca (octopi, clams, etc) Nematoda (a phylum of worm) Nematomorpha (a phylum of worm) Nemertea (a phylum of worm) Onychophora (a phylum of worm) Orthonectida Phoronida (a phylum of worm) Placozoa Platyhelminthes (flat worms) Porifera (sponges) Priapulida Rhombozoa Rotifera Sipuncula Tardigrada (Water bears, which are microscopic animals that live in and eat moss. They look like caterpillars). Xenoturbellida (strange flatworm)
A ribbon worm falls under the phylum Nemertea.
I only know one type of worm that is poisonous and it is called the Bristle worm.
An arrow worm is a variety of marine worm of the phylum Chaetognatha.