PPT-Unit 3:Phylum Cnidaria

Topic General Characteristics and Life Processes of Phylum C nidaria . GERM LAYERS. Porifera. None . cnidaria. Two layers: . Ectoderm. Endoderm . SYMMETRY. . porifera. No symmetry. cnidaria. Radial symmetry. COELOM: . A fluid filled cavity in the body. Porifera. Acoelomate. Phylum Species Placozoa 1 Demospongia 8000 Hexactinelida 1000 Calcera 1000 Cnidaria 9000 Ctenophora 100 Myxozoa 1200 Rotifera 1800 Acanthocephala 1150 Cycliophora 1 Entoprocta 150 Platyhelminthes 1378 BSC 2011L. Kingdom Animalia. All animals are multicelluar and heterotrophic . Some means of locomotion. Always diploid. Animal Taxonomy. Domain . Eukarya. Kingdom . Animalia. Invertebrates. Parazoa. – no true tissue layers. 5 - . 1. Coral, Anemones, Sea Fans, and Jellyfish. Chapter 5 Pages 5-33 & 5-34. Characteristics of Phylum Cnidaria. 5 - . 2. Coral, Anemones, Sea Fans, and Jellyfish. Chapter 5 Pages 5-33 & 5-34. 5 - . 1. Coral, Anemones, Sea Fans, and Jellyfish. Chapter 5 Pages 5-33 & 5-34. Characteristics of Phylum Cnidaria. 5 - . 2. Coral, Anemones, Sea Fans, and Jellyfish. Chapter 5 Pages 5-33 & 5-34. Invertebrates. Chapter 6. Marine Ecology. Mr. Seifert. Cnidaria. Sponges. Platyhelminthes. Nematoda. Mollusca. Annelida. Annelida. General Characteristics. Segmented Worms. Hydrostatic Skeleton. Setae. Cnidaria. Phylum . Cnidaria. Radial or . biradial. symmetry. No posterior or anterior ends. Instead they have oral (end with the mouth) and . aboral. ends . Mostly marine. Over 9,000 species. Characteristics of Cnidarians. Cnidaria. Examples:. Sea anemones. Corals. Sea Pen. Sea Fan. Sea Plume. Hydra. Jelly fish. Portuguese Man o’ War. Box . Jelly Fish. General Characteristics. Cnidaria. : nettle like. Simple animals. Kingdom: Animalia. Phylum Cnidaria. Class Hydrozoa. Class Scyphozoa. Class Anthozoa. Phylum Ctenophora. Major Characteristics. Presence of specialized tissues. Also called Coelenterates. Comprised of sea anemones, jellyfish, corals. Laboratory 27 & 28. Introduction to Invertebrates. An . invertebrate. is an animal without a backbone. . The group includes 95% of all animal species. Introduction to Invertebrates. There is no escaping the invertebrates!. :. PHYLUM CNIDARIA. PHYLUM CTENPHORA. CLASSIFICATION. CHARACTERISTICS. ECONOMIC IMPORTANCE. SUPER PHYLUM COELENTERATA. These are animals with definite shape; radial symmetry. . They have tissues; tissues formation start from here. . General Characteristic :. Metazoa ( true tissues ).. Coelentrata , single cavity to the body ( enteron or gastrovascular cavity ) . Radially symmetrical.. Diploblastic: . . - Ectoderm ( dermis ). - Endoderm ( Gasrodermis ). The phylum . C. nidaria. is represented by approximately . 10,000 species. .. The phylum is classified into 5 classes.. Hydrozoa. (hydroids and . siphonophores. ). Anthozoa. (corals and sea anemone). 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 – .