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platyhelminthes    
扁形动物

扁形动物


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  • Flatworm - Wikipedia
    Platyhelminthes (from the Greek πλατύ, platy, meaning "flat" and ἕλμινς (root: ἑλμινθ-), helminth-, meaning "worm") [4] is a phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates commonly called flatworms or flat worms
  • Flatworm | Reproduction, Examples, Characteristics | Britannica
    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 parasitic—i e , living on or in another organism and securing nourishment from it
  • Characteristics of Platyhelminthes - BYJUS
    Platyhelminthes have the following important characteristics: They are triploblastic, acoelomate, and bilaterally symmetrical They may be free-living or parasites The body has a soft covering with or without cilia Their body is dorsoventrally flattened without any segments and appears like a leaf
  • Phylum Platyhelminthes - Characteristics, Classification, Examples . . .
    Phylum Platyhelminthes, also known as flatworms, comprises bilaterally symmetrical, triploblastic, dorsoventrally flattened invertebrates lacking circulatory, respiratory, and skeletal systems, characterized by a simple digestive system with a single opening and a protonephridial excretory system
  • Anatomy and Characteristics of Platyhelminthes - BiologyInsights
    Flatworms, or platyhelminthes, are a diverse group of invertebrates that play roles in various ecosystems and have implications for human health These organisms range from free-living species to parasitic ones that can impact both wildlife and humans
  • Platyhelminthes - Examples, Characteristics, Species, Habitat
    Platyhelminthes, commonly known as flatworms, are a diverse phylum of simple, bilaterally symmetrical, and unsegmented invertebrates They exhibit a dorsoventrally flattened body and include free-living forms like planarians, as well as parasitic species such as tapeworms and flukes
  • Phylum Platyhelminthes: Definition, Characteristics, Classification and . . .
    Phylum Platyhelminthes (Gr , platys = flat ; helmins = worms) refers to a group of invertebrate animals commonly known as flatworms They are characterized by their soft, unsegmented, dorsoventrally flattened bodies
  • 14. 1: Phylum Platyhelminthes - Biology LibreTexts
    The Platyhelminthes consist of two lineages: the Catenulida and the Rhabditophora The Catenulida, or “chain worms” is a small clade of just over 100 species
  • Platyhelminthes Explained: Characteristics, Classification Facts
    In this guide, we will explore the Platyhelminthes definition and examples, discuss Platyhelminthes characteristics, delve into Platyhelminthes classification, and uncover additional facts that set them apart from other animal groups
  • Phylum Platyhelminthes- Characteristics, Classification And Example
    The Phylum Platyhelminthes makes up the 4th largest phylum among the animal kingdom But among the acoelomate organisms, the phylum Platyhelminthes constitutes the largest phylum with more than about 20,000 known species throughout the world





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