EVERYDAY SCIENCE

Detailed explanation-1: -flatworm, also called platyhelminth, 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 parasitic-i.e., living on or in another organism and securing nourishment from it.

Detailed explanation-2: -Platyhelminthes are called flatworms.

Detailed explanation-3: -Platyhelminthes are a group of invertebrates that are also called as flatworms because their bodies are dorsoventrally flattened.

Detailed explanation-4: -Freshwater flatworms are actually part of a larger phylum of flatworms called Platyhelminthes. Most of the flatworms in this phylum are internal parasites, but the freshwater flatworms are primarily predators and scavengers of various soft-bodied invertebrates.

Detailed explanation-5: -Taenia (Tapeworms) Fasciola (Liver fluke) Taenia saginata (Beef tapeworm) Echinococcus granulosus – The dog tapeworm. Planeria (freshwater flatworm) Opistorchis.