Webflatworm: [ flat´werm ] an individual organism of the phylum platyhelminthes ; those parasitic in humans include tapeworms and flukes . Called also platyhelminth . 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 …
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WebFlatworm definition, any worm of the phylum Platyhelminthes, having bilateral symmetry and a soft, solid, usually flattened body, including the planarians, tapeworms, and … WebOverview Parasitic Flatworms . Parasitic flatworms include flukes and tapeworms. Most parasitic flatworms are endoparasites with complex life cycles with multiple hosts. The definitive host is inhabited by adult, sexually reproductive worms and one or more intermediate hosts are inhabited by juvenile stages of the worm. Parasitic flatworms …
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 … WebWorms are soft, long-bodied invertebrates , or animals without a backbone. There are at least 20,000 species, or kinds, of worm. They are not all related. In fact, they belong to several different animal groups.
Webganglion, plural ganglia, dense group of nerve-cell bodies present in most animals above the level of cnidarians. In flatworms (e.g., planaria) two lateral neuronal cords carry impulses to and from a pair of ganglia at the … WebThe mesenchyme consists of fixed cells, free cells, and a fibrous matrix. Typically the flatworm brain is a bilobed mass of tissue with nerve cords. The muscular system is well-developed. The excretory system consists of protonephridia. Digestion can be both extracellular and intracellular in free-living and parasitic forms.
WebPlatyhelminthes definition, a phylum of worms having bilateral symmetry and a soft, usually flattened body, comprising the flatworms. See more.
WebHermaphrodite definition. Has both male and female reproductive organs. Do free-living flatworms often have complex life cycles that involve both sexual and asexual reproduction? No. How does the flat shape of the worms body allow it to rely on diffusion? The materials don't have to travel far. ny vs texas time differenceWebAny of various parasitic and nonparasitic worms of the phylum Platyhelminthes, such as a tapeworm or a planarian, characteristically having a soft, flat,... Flatworm - definition of … magnus law firmWebThe project entitled "The Flatworm Functional Genomics Initiative (Fugi)" will develop gamechanging research tools for the study and manipulation of parasitic flatworm species responsible for the devastating diseases echinococcosis (hydatid disease) and schistosomiasis (bilharzia), and is set to propel flatworm research into the 21st century. ny vs tb scoreWebMar 8, 2024 · Platyhelminthes definition: Platyhelminthes are invertebrate organisms with a flat, soft body. The Platyhelminthes common name is "flatworms". The majority of Platyhelminthes are parasitic ... magnus larson chugwater wyThe 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… ny vtl improper passingWebflatworm: 1 n parasitic or free-living worms having a flattened body Synonyms: platyhelminth Types: show 8 types... hide 8 types... planaria , planarian free-swimming mostly freshwater flatworms; popular in laboratory studies for the ability to regenerate lost parts fluke , trematode , trematode worm parasitic flatworms having external suckers ... magnus lie hetland编著的经典python教程Webflatworm: 1 n parasitic or free-living worms having a flattened body Synonyms: platyhelminth Types: show 8 types... hide 8 types... planaria , planarian free-swimming … magnus loftsson