Webfluke, also called blood fluke or trematode, any member of the invertebrate class Trematoda (phylum Platyhelminthes), a group of parasitic flatworms that probably evolved from free-living forms millions of years ago. There … WebFlatworms (phylum Platyhelminthes) are bilateral animals with no body cavity A planarian has a gastrovascular cavity and a simple nervous system. Flatworms live in marine, freshwater, and damp terrestrial habitats. Flukes and tapeworms are parasitic flatworms with complex life cycles. 3 characteristics of Platyhelminthes

Flatworm - Wikipedia

WebA planarian is one of the many flatworms of the traditional class Turbellaria. [2] [3] It usually describes free-living flatworms of the order Tricladida ( triclads ), [4] although this common name is also used for a wide number of free-living platyhelminthes. [2] Webflatworm ( ˈflætˌwɜːm) n (Animals) any parasitic or free-living invertebrate of the phylum Platyhelminthes, including planarians, flukes, and tapeworms, having a flattened body with no circulatory system and only one opening to the intestine black eagle peak

Flatworms - definition of Flatworms by The Free Dictionary

WebFlatworms (platyhelminths) – these include the trematodes (flukes) and cestodes (tapeworms). Thorny-headed worms (acanthocephalins) – the adult forms of these worms reside in the gastrointestinal tract. The … Webflatworm ( ˈflætˌwɜːm) n (Animals) any parasitic or free-living invertebrate of the phylum Platyhelminthes, including planarians, flukes, and tapeworms, having a flattened body … The flatworms, flat worms, Platyhelminthes, or platyhelminths (from the Greek πλατύ, platy, meaning "flat" and ἕλμινς (root: ἑλμινθ-), helminth-, meaning "worm") are a phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates. Unlike other bilaterians, they are acoelomates (having no body cavity), and have no specialized circulatory and respiratory organs, which restric… black eagle pin bushing