PPT-Flatworms, Roundworms, & Segmented Worms

Phylum Platyhelminthes Flatworms Flat and thin bodies Bilateral symmetry Most are parasitic Phylum Platyhelminthes Flatworms include planarians flukes and tapeworms 20000 species of flatworms. By: Alexey Pomogaev, Daniel Cho, Connor Healey. Flatworms and Roundworms. Flatworms. Phylum- . Platyhelminthes. Class-. . Turbellaria, Cestoda, Trematoda, Monogenea. Families- . 102 variations. Roundworms. Worms:. Flatworms and Roundworms. Biology 11. Worms. Divided into 2 Groups. Unsegmented. Flatworms. Roundworms. Segmented. Annelids . Phylum Platyhelminthes. Platy= flat. Helminth. =worm. The Flatworms. Year . 7 . Classification. 2015. Quick Quiz. How many kingdoms exist in the living world & what are their names?. Name the classes the following animals would fit into. Kookaburra Dolphin Alligator Snapper Salamander. A herbivore nematode Link to video. . Link to video. Flatworms - General Information. Symmetry. : Bilateral. Cephalization. - head end concentrated with sense organs and nervous control. Tripoblastic. - has a middle germ layer (mesoderm) as well as ectoderm and endoderm . Phylum . Annelida. (segmented worms). https://. www.youtube.com/watch?v=9Q9gh1k99rY. Main . Characteristics. . segment. ed worms. . true coelom (body cavity). Annelids. Include:  . . earthworms. phyla: . Platyhelminthes – flatworms (. Gk. ) . plati. . – flat. . . helminth. - worm. Nematoda. – roundworms, . nema. . (. Gk. ) ". thread". Annelida – segmented worms, . . . 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. 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 . . Complete . circulatory system with capillaries, arteries and veins. . Body . wall made of circular and lengthwise muscles. . Continuous . gut running from mouth to anus with own musculature. . Bristle-like . Animals Without Backbones Chapter 2: The Animal Kingdom Scientists keep track of Earth’s animal species by observing their similarities and differences . An animal with symmetry has body parts that match other body parts around a midpoint or Phylum Nematoda. Phylum Annelida. Choanoflagellates. The Worm Characteristics. Bilateral. symmetry – the simplest organisms to exhibit this type of symmetry. Invertebrates – use . hydrostatic. pressure to provide structural support (made of . 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. About Roundworms & Hookworms Protecting your pets protects your family What are roundworms & hookworms? You may already have heard that worms often infect puppies and kittens as well as older pets.