PPT-Echinoderms

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. 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 Order Toll Free 877 6615355 Order by FAX 843 4700237 The Phylum Echinodermata consists of about 6000 living species all of which are marine This video program compares the five major classes of living echinoderms in terms of basic functional biology 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. Megan Snyder and Anita . Soemer. http://www.bing.com/images/search?q=starfish+labeled&qs=IM&form=QBIRMH&pq=starfish+label&sc=8-14&sp=1&sk=#view=detail&id=47996ECADFA4F713FD24356D6F1E7EA504247D96&selectedIndex=0. 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. 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.. 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. . 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.