Aschelminthes
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Aschelminthes - both marine and freshwater animals |
They are a group of marine and freshwater animals that include rotifers and roundworms (nematodes). The group also includes the tardigardes or water bears which are sometimes linked to the arthropods.
The majority of free-living aschelminths are tiny worm-shaped animals, ranging from microscopic size to a centimetre in length. Typically, many aschelminths have no body cavity, though some of the larger roundworms and rotifers do.
