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BookmarkThe flatworms are a phylum of relatively simple soft-bodied invertebrate animals.
With about 25,000 known species they are the largest phylum of acoelomates.
Flatworms are found in marine, freshwater, and even damp terrestrial environments.
Most are free-living forms, but many are parasitic on other animals.
There are four classes: Trematoda (Flukes), Cestoda (Tapeworms), Monogenea, and Turbellaria..
For more information about the topic Flatworm, read the full article at Wikipedia.org, or see the following related articles:
Tapeworm — In biology, Cestoda is the class of parasitic flatworms, called cestodes or tapeworms, that live in the digestive tract of vertebrates as adults and ... > read more
Animal — Animals are a major group of organisms, classified as the kingdom Animalia or Metazoa. In general they are multicellular, capable of locomotion and ... > read more
Rotifer — The rotifers make up a phylum of microscopic, and near-microscopic pseudocoelomate animals. There are a variety of different shapes of rotifer. There ... > read more
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