PPT-Phylum Echinodermata What does

echinodermata mean Spiny skin Examples of echinoderms What is an echinoderm Typically have no anteriorposterior end Lack cephalization Invertebrates Questions What is an invertebrate What other phyla are invertebrates. by: Rachael Landrie Sea urchins have no brain and therefor have a simple nervous system. The center is a large nerve ring encircling and releasing of sperm/eggs from the gonopores. Sea urchins are, ho 1. Phylum Annelida. Class Polychaeta. Class Clitellata. Phylum Annelida. 2. Annelid Characteristics. Defining Characteristics. One or more pairs of chitinous setae. The phylum includes polychaetes, earthworms, leeches, and vestimentiferans. Kingdom Animalia. Phylum Echinodermata. Class Asteroidea. Class Ophiuroidea. Class Echinoidea. Class Holothuroidea. Echinoderms:. Name means “spiny skin” . Sea stars, sea cucumbers, sea urchins, etc.. 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. Thrive in fresh water, salt water and soil.. Many are motile, with pseudopods (“false feet”) used for locomotion.. Some are parasitic species, found in animal intestines.. Entamoeba. . histolytica. 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. (Means spiny skin). https://vimeo.com/37295088. Echinodermata. Classes. Sea stars. Asteriodea(Stelleroids). Aka starfish. Echinodermata. Classes. Crinoidea/Crinoids. Feather stars. Sea lilies. Echinodermata. Cnidaria. Ctenophora. Platyhelminthes. Rotifera. Nematoda. Nemertea. Mollusca. Annelida. Arthropoda. Bryozoa. Phoronida. Brachiopoda. Echinodermata. Chordata. No true tissues. radial symmetry. diploblastic. Almonther. I. . Alhamedi. The Islamic University of Gaza. Department . of . Biology. E-mail : . mhamedi@iugaza.edu.ps. Web page :. http. ://site.iugaza.edu.ps/mhamedi. Characteristics of . Phylum Echinodermata. 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. Aschelminthes : Roundworms Not the Phylum name 7 Phyla in this grouping Characteristics Most are freshwater Cylindrical Unsegmented Bilaterally symmetrical Triploblastic ( pseudocoelomates ) Dioecious ). (8,761 known species). General Description: . Simplest animals, multicellular. No organs or body systems. Skeleton composed of spongin (soft) and spicules (hard). Symmetry: . Asymmetrical. Feeding: . Ophiuroidea. Ms. . Mariya. Joy . Department . of Zoology. Class ophiuroidea. Popularly known as basket stars. , brittle . stars,or. serpent stars.. Basket stars -Branched arms. Brittle stars -Fragile and easily breakable arms. In biology, . phylum.  . (.  . plural. : . phyla. ). .  is a . taxonomic rank.  below . kingdom.  and above . class. .. phyla can be thought of as grouping organisms based on general specialization of .