PPT-The Worms Phylum Platyhelminthes

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 . VMP . 920. Infection & Immunity II. Veterinary . Parasitology. Nematoda. Triploblastic. Bilateral. Cuticle (secreted). Longitudinal Muscles only. Psuedocoelomate. Dioecious . Complete Digestive Tract. Link to video. Flatworms - General Information. 3. . phyla in Ch. 14 – We are going to focus . mainly on . Phylum Platyhelminthes . Symmetry. : Bilateral. Cephalization. - head end concentrated with sense organs and nervous control. BSC 2011L. Animal Characteristics. Symmetry. Radiata. – radial symmetry, . diploblastic. (2 tissues). Bilateria. – bilateral symmetry, . triploblastic. Body Cavity. Acoelomates. – no cavity. BASIC CHARACTERISTICS OF ANIMALS:. 1. . 2. . 3. . . . NINE ANIMAL PHYLA. . INVERTEBRATES: . . VERTEBRATES (CORDATES): . (1 phylum). . . Invertebrates. Chapter 6. Marine Ecology. Mr. Seifert. Cnidaria. Sponges. Platyhelminthes. Nematoda. Mollusca. Annelida. Annelida. General Characteristics. Segmented Worms. Hydrostatic Skeleton. Setae. Link to video. Flatworms - General Information. 3. . phyla in Ch. 14 – We are going to focus . mainly on . Phylum Platyhelminthes . Symmetry. : Bilateral. Cephalization. - head end concentrated with sense organs and nervous control. 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. Who Am I?. Liver Fluke. A . fluke is a type of small, parasitic . flatworm . that feeds on the blood or body of its host. The sheep liver fluke attacks sheep and cattle and has even been known to infect humans, making them seriously ill. . Adaptive Benefits of a Pseudocoelom - a space between the guts and the . body wall . It is not lined with a . peritoneum. therefore is termed a . false cavity. It is an improvement over the . acoelom. Core. Course No. ZOOA – . P1T. , . Group-A. , . Topic . No. . 2 . Bilaterally symmetric, triploblastic, true coelomate animals.. Body vermiform , elongated, divided into three regions, . anteriormost. 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. !90,000 worms in a single rotting apple !!~9 billion in 1 acre of farmland !!Major are small predators or saprophytes !!Nearly every insect is parasitized by a nematode !!Plant and animals nematode pa CLASS : TREMATODA. Types of . Trematodes. LIVER FLUKE. :. . Fasciola. , . Clonorchis. , . Dicrocoelium. INTESTINAL FLUKE. . : . Fasciolopsis. , . Heterophyes. LUNG FLUKE. . : . Paragonimous. BLOOD FLUKE. Animal Characteristics. Symmetry. Radiata. – radial symmetry, . diploblastic. (2 tissues). Bilateria. – bilateral symmetry, . triploblastic. Body Cavity. Acoelomates. – no cavity. Psuedocoelomates.