PPT-Concept 33.5: Echinoderms and chordates are deuterostomes

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. 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 Members of this group are sea stars, sea urchins, sea cucumbers and sand dollars. . Echinoderms have an internal skeleton called a endoskeleton – made of harden plates that makes the animal bumpy and irregular texture.. . 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. Phylum . Arthropoda. Most diverse and successful animals of all time. Segmented body, tough . exoskelton. , jointed appendages. Classified based on number and structure of their body segments and appendages. Innatism. Today we will be considering the following criticisms of Concept . Innatism. :. Alternative explanations for proposed innate ideas.. Locke’s arguments against . I. nnatism. Innatism’s. reliance on the non-natural.. Lancelets, Tunicates & Sea Squirts . Lancelets, Tunicates & Sea Squirts. Key Characteristics. Deuterostome. – possessing a notochord. Includes the subphyla Vertebrata. Mammals. Fishes. Amphibians. :. Echinoderms. Spiny-skinned. Sea Star (Starfish). Green Sea Urchin. Rosy Feather Star. Echinoderms are animals with no: brain, eyes, heart, or lungs. Water-vascular system. Taxonomy. Common starfish. 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). I. . Echinoderms. A. Origin . of the Phylum name Echinodermata. . 1. . . echino. . = . Spiny. ;. . dermis = . Skin. II. . What is a Echinoderm?. A. . Characteristics of Phylum Echinodermata. . 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. . Class . Pterobranchia. (Sea Angels). Class . Enteropneusta. (acorn worms). Small group of marine worms that show similarities. to Echinoderms and Chordates. Tornaria. of Acorn Worms . Auricularia. 1. I. . Concept 32.1: What is an Animal?. 2. 95% are invertebrates. Multicellular. Eukaryotic. Heterotrophic (. ingestive. ). Lack . cell . walls. Most are mobile. Diploid with haploid gametes. Sexual reproduction (zygote . Derived. = appearing later in the fossil record as a new evolutionary innovation, descendant character state. Clade. = all organisms within a single evolutionary lineage; stemming from a common ancestor (can also be called a .