WebApr 8, 2024 · Flatworms: Platyhelminthes (flatworms) have a more complex nervous system than Acoela and are lightly cephalized, with an eyespot above the brain near the front end, for example. Advantages in Cephalization Animals Cephalization provides three benefits to an organism- For starters, it promotes brain development. WebDescribe the unique anatomical and morphological features of flatworms, rotifers, Nemertea, mollusks, and annelids; ... Segmentation is seen in internal anatomy as well, which is called metamerism. Annelids are protostomes. These animals have well-developed neuronal and digestive systems. Some species bear a specialized band of segments …
Biology Ch 26 #16-30 Flashcards Quizlet
WebThey can be divided into three major categories: (1) Turbellaria: free-living flatworms, like Planarian (in freshwater) and Divided flatworm (in marine); (2) Trematoda: parasitic flukes that Infect internal organs of a host. Ex. Schistosoma fluke causes Schistosomiasis – fluke’s eggs clog blood vessels of patients; (3) Cestoda: parasitic … WebMar 8, 2024 · Their body generally shapes as a worm but varies from moderately elongated flattened to long ribbon-like and leaf-like. They are small to moderate in size varying from microscopic to extremely elongated form measuring up to 10-15 meters. Their body is unsegmented except in class Cestoda. trickshot food market
New Zealand Flatworm - Soil Ecology Wiki - University at Buffalo
WebAnnelid worms and arthropods have even more complex body plans and behaviors than flatworms, partly because of segmentation. Body segments ( metameres) are repeated serially along the body's rostrocaudal axis and presumably share a common underlying genetic developmental program, although terminal differentiation (adult structure) may … WebSep 7, 2024 · The flatworms are part of the phylum Platyhelminthes and the segmented worms are part of the phylum Annelida. The flatworms have bilateral symmetry and the bodies of the segmented worms are divided into distinct sections but they have bilateral symmetry too. Do flatworms have appendages? WebPhylum: Platyhelminthes - Members of the class Turbellaria are classified under the phylum Platyhelminthes which consists of bilaterian, unsegmented invertebrates commonly known as flatworms. They are … trickshot fortnite map code