PPT-Chapter 14, Echinoderms

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. And 57375en 57375ere Were None meets the standard for Range of Reading and Level of Text Complexity for grade 8 Its structure pacing and universal appeal make it an appropriate reading choice for reluctant readers 57375e book also o57373ers students 1 The embryos of deuterostomes develop quite differently from those of protostomes Protostomes and Deuterostomes Deuterostomesthe ehino0erms hor0ates an0 a few other groupsshare a mo0e of 0evelopment that is quite 0ifferent from other animals 47 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. Mollusks, Arthropods, and Echinoderms. 7. th. Grade Science. Mollusks. __________ - invertebrates with soft . unsegmented. bodies that are often protected by a harder outer shell. _________ - a thin layer of tissue that covers the internal organs – produces the hard shell. Crown-of-Thorns Star Fish. By Joe Baartz. Biological Classification. The binomial name for the Crown-of-thorns starfish is called ‘. A. canthaster . P. lanci’~ Linnaeus, 1758.. Kingdom: Animalia. 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. :. 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. 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.. I. . Echinoderms. A. Origin . of the Phylum name Echinodermata. . 1. . . echino. . = . Spiny. ;. . dermis = . Skin. II. . What is a Echinoderm?. A. . Characteristics of Phylum Echinodermata. . Evolutionary Perspective. Flourished in 400 million year-old seas. Many were attached suspension feeders.. 12 of 18 classes now extinct. Remain a major component of marine ecosystems. Characteristics. . 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.