Segmented worms
planeriacomes under kingdom animalea
Flat worms
Pinworms belong to the Nematode group of worms.
Planaria
Sea planaria are small marine flatworms that belong to the class Turbellaria. They are usually found in coastal waters and are known for their colorful and flattened bodies. Sea planaria are predatory animals that feed on small invertebrates and are an important part of marine ecosystems.
Worms belong to the Phylum Annelida. They are 'annelids'.
Kingdom: AnimaliaPhylum: PlatyhelminthesClass: Turbellariaorder: SeriataFamily: PlanariidaeGenus: PlanariaSpecies: maculata
Tapeworms. Flukes and Planaria are also other examples of flat worms.
The round worm, flatworm and segmented worm are first and foremost differentiated by the descriptors used before the word worm. Other than that, there are many worms that fit into these three categories. Some are internal parasites, others free swimming, etc.Round worms e.g. Ascaris belong to Nematoda , they are pseudocolomate .Flat worms e.g. Planaria belong to Platyhelminthis are acoelomate .Segmented worms e.g. earth worm belongs to Annelida and are coelomate .
It's actually MOLLUSKS.
Leeches are parasitic worms of the class Clitellata, and mainly the subclass Hirudinea.
No, planaria are a type of flatworm and are not considered a bacteria. But, planaria are good for the ecosystem- so maybe it would be like a good type of bacteria that contributes to the functioning of the human body as it the planaria would fo the Earth. You sould really look up planaria, there are pictures and more.