PPT-The Deuterostomes Echinoderms and Chordates

Developmental Variations During embryonic development the process of gastrulation forms the digestive cavity Gastrulation varies in the animal kingdom No gastrulation placozoans . pincers Echinoderms Echinoderms are are found in all the found in all the oceans oceans of the world of the world What is an echinoderm What is an echinoderm brPage 2br SKIN all have a hard SKIN all have a hard spiny spiny or bumpy or bumpy endosk . Phylum . Echinodermata. , from the Greek for . spiny skin. Phylum Echinodermata –. spiney-skinned animals. includes sea stars, brittle stars, sea urchins, sand dollars, sea cucumbers, and crinoids. Presented to you by: Sanchita Agrawal, Priyanka Mangtani, Inga Gurevich, Melody Chua. Part 1: Invertebrate Chordates. OBJECTIVES:. Examples. Evolution. Body Structure. Nutrition/Digestion. Transportation. By: Amanda Brainerd. Endoskeleton . Five-part radial symmetry. Water-vascular system . Skin Gills. No head or brain. Key Characteristics . Anatomy. Sieve . Ring canal. Tube feet. Anus. Stomach. Digestive glands. Lancelets, Tunicates & Sea Squirts . Lancelets, Tunicates & Sea Squirts. Key Characteristics. Deuterostome. – possessing a notochord. Includes the subphyla Vertebrata. Mammals. Fishes. Amphibians. Echinoderms (phylum Echinodermata) include sea stars and sea urchins. Chordates (phylum Chordata) include the vertebrates. Echinoderms and chordates constitute the clade Deuterostomia. © 2011 Pearson Education, Inc.. Chordata. An Introduction to Vertebrate Animals . Introduction. Chordates (vertebrates) are the group of animals . most familiar to us. Ex: . mammals, birds, amphibians, reptiles, fish. Name comes from:. Week . 6 . Discussion. Overview of Protostomes. Most diverse and abundant animals on Earth. 22/30 animal phyla are protostomes. Arthropods (insects, crustaceans). Mollusks (snails, claims, squid). Annelids (earthworms, leeches). Characteristics of Echinoderms. One of the strangest and most unusual phylum in the animal kingdom.. Echinoderms are . deuterostomes. , which is a trait they share with chordates (vertebrates). . All of the other invertebrates we learned about so far have been protostomes.. I. . Echinoderms. A. Origin . of the Phylum name Echinodermata. . 1. . . echino. . = . Spiny. ;. . dermis = . Skin. II. . What is a Echinoderm?. A. . Characteristics of Phylum Echinodermata. . Where does it start?. Part 1. Phylum Chordata. Animal Kingdom. Vertebrates over here. Chordata (animals with notochord at some stage in life cycle). Craniata (euchordates with a cranium) = Vertebrata. Name the characteristics that chordates share. Describe the main characteristics shared by all vertebrates. Explain how vertebrates differ in the way they control body temperature. Warm up:. What is . More species (200,000 ) than any other animal phylum except Arthropoda. Soft body – often protected by CaCO. 3. shell. Unsegmented, typically bilaterally symmetrical. I. Phylum Mollusca. ©2004 Amanda Demopoulos. Chordates By Olivia, Eva, and Anais [Untitled photograph of a giraffe]. ( n.d. ). Retrieved February 20, 2014, from http ://wakpaper.com/large/Giraffes_wallpapers_331.jpg Elephants. ( n.d.