Platyhelminthes (from Ancient Greek πλατύ platy 'flat' and ἕλμινς helmins 'parasitic worm') [4] is a phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates commonly called …

6 days ago · flatworm, any of the phylum Platyhelminthes, a group of soft-bodied, usually much flattened invertebrates. A number of flatworm species are free-living, but about 80 percent of all flatworms are …

Flatworms are found in marine, freshwater, and even damp terrestrial environments. They generally are placed into four classes: Trematoda (flukes), Cestoda (tapeworms), Monogenea, and Turbellaria. …

Jul 9, 2002 · Flatworms are unsegmented, bilaterally symmetrical worms that lack a coelom (acoelomate) but that do have three germ layers. Some forms are free living but many are parasitic.

Jul 30, 2025 · Flatworm parasites are organisms with flattened bodies that live on or inside other organisms. These parasites belong to the phylum Platyhelminthes, a diverse group of invertebrates. …

Feb 6, 2025 · Platyhelminthes, or flatworms, are a phylum of simple, bilaterally symmetrical invertebrates with a dorsoventrally flattened body. They lack specialized respiratory and circulatory …

Learn about the flatworm (Turbellaria spp.) benthic macroinvertebrate by exploring the life cycle, feeding habitats, interesting facts and its role in the food chain.

Most flatworm species live in fresh and marine waters, although some live on land. Their soft, flattened bodies are composed of three layers — the ectoderm, endoderm, and mesoderm. They may be …

Flatworms are the simplest of the worm groups. There are about 20,000 species in this group. Flatworms are found many places and can be free living or parasitic. A parasite lives off another …

Platyhelminthes (from Ancient Greek πλατύ platy 'flat' and ἕλμινς helmins 'parasitic worm') [4] is a phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates commonly called …