PPT-Cnidaria

Essential Question What is a cnidarian What are cnidarians Softbodied carnivorous animals that have stinging tentacles arranged in a circle around their mouths Cnidocyte stinging cells Nematocyst. Bauplan. (pl. . Baupläne. ) The generalized body plan of an archetypal member of a major taxon.. A . body plan, . baupläne. , ground plan, ground pattern. , or . bodyplan. , is "an assemblage of morphological features shared among many members of a phylum-level group". 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 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. (jellyfish, anemones, corals). Porifera. Cnidaria. Ctenophora. Platyhelminthes. Rotifera. Nematoda. Nemertea. Mollusca. Annellida. Arthropoda. Bryozoa. Phoronida. Brachiopoda. Echinodermata. 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. :. 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 ). 1. Cnidocyte. : Unique and defining feature of this phylum. A combined sensory-effector cell.. Cnidocytes. have a single sensory cilium thus are called as the independent sensory-effector cells.. Each . 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). . Topic: General Characteristics and Life Processes of Phylum . C. nidaria. .