PPT-Phylum Platyhelminthes and other Acoelomate Animals, Chapter 8, Zoology

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. zoology www.otago.ac.nz/sciences UNIVERSITY OF OTAGO\r\f\n\t Why study Zoology at Otago?You get to work in all sorts of spectacular environments. You will have th 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. PLATYHELMINTHES. (flatworms, tapeworms). Porifera. Cnidaria. Ctenophora. Platyhelminthes. Rotifera. Nematoda. Nemertea. Mollusca. Annellida. Arthropoda. Bryozoa. Phoronida. Brachiopoda. Echinodermata. Zoology Department, 1438-1439H. Learning Objectives. Structure, function and cytogenetics of the animal cell. Different animal tissues. Taxonomy. Important Phyla, Classes, Genera, and Species. Anatomy and physiology. Animals are the most physically diverse kingdom but share common characteristics.. Most animals reproduce sexually. . Animal cells are. supported by collagen.. three-stranded. protein. found in bone,. 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. . Animal Classification Living organisms are classified into five kingdoms. Each kingdom is further split into smaller groups called Phyla (singular phylum) In each Phyla there are classes and then classes are subdivided into orders. 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 . Animal Characteristics. Symmetry. Radiata. – radial symmetry, . diploblastic. (2 tissues). Bilateria. – bilateral symmetry, . triploblastic. Body Cavity. Acoelomates. – no cavity. Psuedocoelomates. Acoelomate Invertebrates, Exercise 7. While developing, most animals have the following 3 embryonic tissues:. Endoderm. Mesoderm. Ectoderm. Sponges have no true tissues – . Parazoans. All other animals have true tissues – . Unique Features:. . First animals with Bilateral . symetry. .. . These are first . Triploblastic. animals .. . These have organ- system . organisation. .. . These are leaf like or ribbon like animals..