PPT-Flatworms

Phylum PLATYHELMINTHES VS Class Turbellaria includes Planarians Class Cestoda Includes Tapeworms Class Trematoda Includes Flukes II Body PlanStructure Flatworms demonstrate a . 4 2 collected with planktonic acoel flatworms with algal endosymbionts the open Slope Waters, sp. 'C' sp. 'C' sp. 'C' sp. 'C' Dark brownb Dark brownb Dark brownb Dark brownt' Dark brownb Collected wit By: Alexey Pomogaev, Daniel Cho, Connor Healey. Flatworms and Roundworms. Flatworms. Phylum- . Platyhelminthes. Class-. . Turbellaria, Cestoda, Trematoda, Monogenea. Families- . 102 variations. Roundworms. Platyhelminthes. : . the Flatworms. Platyhelminthes Vocabulary. Use the blue modern bio textbook to do these on your grid. Color should be on front. It doesn’t matter how you write the back. Remember to complete your squares and # them correctly on the back. Worms:. Flatworms and Roundworms. Biology 11. Worms. Divided into 2 Groups. Unsegmented. Flatworms. Roundworms. Segmented. Annelids . Phylum Platyhelminthes. Platy= flat. Helminth. =worm. The Flatworms. Belong to the KINDGOM ANIMALIA. PHYLUM PLATYHELMINTHES. Characteristics. Three germ layers (endoderm, ectoderm, mesoderm). Bilateral symmetry. Cephalization (has a head). 4. . Acoelomates . = without . phyla: . Platyhelminthes – flatworms (. Gk. ) . plati. . – flat. . . helminth. - worm. Nematoda. – roundworms, . nema. . (. Gk. ) ". thread". Annelida – segmented worms, . . . PLATYHELMINTHES. (flatworms, tapeworms). Porifera. Cnidaria. Ctenophora. Platyhelminthes. Rotifera. Nematoda. Nemertea. Mollusca. Annellida. Arthropoda. Bryozoa. Phoronida. Brachiopoda. Echinodermata. By: Nayarit Ayala and Marleni Cruz. Flatworms. Platyhelminthes. Structure. Flatworms are flat, soft bodied, ribbon shaped . unsegmented. , contain no body cavity, but they do have digestive cavity. They are bilateral symmetrical, while having only one opening. Flat worms have layers of tissues that surround their central gut. They are part of the acoelomates, and are considered hermaphroditic. Their type of cell layers are: an ectoderm, which is the outer covering, an endoderm, which is the lining of digestive spaces, and a mesoderm which is in between the other two. Phylum Platyhelminthes. Flatworms. Flat and thin bodies. Bilateral symmetry . Most are parasitic . Phylum Platyhelminthes. Flatworms include planarians, flukes, and tapeworms. 20,000 species of flatworms. 27-1 Flatworms. What is a Flatworm?. What are some of the defining features of flatworms?. What is a flatworm?. Flatworms are soft, flattened worms that have tissues and internal organ systems. . They are the simplest animals to have three embryonic germ layers, bilateral symmetry, and . Period 5. General Description. Phylum- Platyhelminthes contains flatworms. Soft, unsegmented, & flat (no more than a few mm thick). Tissues (tripoblastic) & internal organ systems. Simplest animals to have: 3 embryonic germ layers, bilateral symmetry, & cephalization. Hymenolepis. nana. – The Dwarf Tapeworm. Frequency - most common tapeworm infection in humans.. Requires no intermediate host - can use insects such as fleas or beetles, but these are not required.. Characteristics. . Unsegmented. worms. Simplest animals with. . Bilateral symmetry. No . specialized . circulatory. or . respiratory. system. (uses diffusion to transport oxygen and . nutrients). Characteristics of Phylum Platyhelminthes (means “flat worm”). Flatworms have . three germ layers (. triploblastic. ); they are the first animal we have discussed in this class with . true organs and tissues.