WebAug 26, 2010 · Figure 15.16 Phylum Platyhelminthes is divided into four classes: (a) Bedford’s Flatworm (Pseudobiceros bedfordi) and the (b) planarian belong to class Turbellaria; (c) the Trematoda class includes about 20,000 species, most of which are parasitic; (d) class Cestoda includes tapeworms such as this Taenia saginata; and the … WebJun 8, 2024 · The Platyhelminthes are acoelomate flatworms: their bodies are solid between the outer surface and the cavity of the digestive system. Most flatworms have …
Introduction to the Platyhelminthes - University of …
WebMar 5, 2024 · Phylum Nematoda (the roundworms) is a diverse group containing more than 15,000 species, of which several are important human parasites (Figure \(\PageIndex{1}\)). These unsegmented worms have a full digestive system even when parasitic. ... Phylum Platyhelminthes (the platyhelminths) are flatworms. This group includes the flukes, … WebReading Guide 27 1 Flatworm Answer Key - Kiddy Math 1. Flatworms make up the phylum _____. Flatworms make up the phylum Platyhelminthes. 2. What are the defining features of flatworms? The defining features of flatworms are that they are soJ, flaKened worms with ,ssues and organ systems. They also have embryonic germ … how to deal with a middle child
Flatworm - Taxonomic classification Britannica
WebCnidarians. The phylum Cnidaria includes animals that show radial or biradial symmetry and are diploblastic. Nearly all (about 99 percent) cnidarians are marine species. Cnidarians have specialized cells known as cnidocytes (“stinging cells”) containing organelles called nematocysts.These cells are concentrated around the mouth and tentacles of the animal … WebNov 23, 2024 · Phylum Platyhelminthes is made up of flatworms, which have a flattened body with an incomplete digestive tract like Poriferans and Cnidarians, meaning the mouth is the same opening as the anus ... WebPlatyhelminthes flatworms. Platyhelminthes. flatworms. Flatworms are unsegmented, bilaterally symmetrical worms that lack a coelom (acoelomate) but that do have three germ layers. Some forms are free living but many are parasitic. Flatworms have a cephalized nervous system that consists of head ganglion ... how to deal with a mentally ill family member