echinodermata classification ppt

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It also indicates that the chordates have been evolved from Echinoderm-like ancestors. LECTURER IN ZOOLOGY KRK GOVT DEGREE COLLEGE ADDANKI-523201 ASHOKKUMARZOOLOGY@GMAIL.COM 2. Or use it to find and download high-quality how-to PowerPoint ppt presentations with illustrated or animated slides that will teach you how to do something new, also for free. Chordata Animal Structure/ Function ... - Urochordata: tunicate/sea squirt. You can change your ad preferences anytime. They have internal brood pouches. Whether your application is business, how-to, education, medicine, school, church, sales, marketing, online training or just for fun, PowerShow.com is a great resource. Required fields are marked *. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. ). Ophiuroidea.

If you continue browsing the site, you agree to the use of cookies on this website. Class Ophiuroidea – Functions & Reproduction, CLASS ASTEROIDEA (aster, star + oeides, in the form of), CLASS CRINOIDEA (krinon, lil + oekks, in the form of), Answer of Question of Reproduction & Development, DEFINITIONS AND KEY POINTS FOR OBJECTIVES.
They have no rays. Class Asteroidea. This class has 230 living species. They are elongated along the oral-aboral axis. Their endoskeleton is covered by epithellium. That's all free as well! aster- star, eidos- form): Eg., Asterias, Zoroaster. - Phylum Echinodermata I. Their tube feet are without suction disks. See our Privacy Policy and User Agreement for details. They have a flattened, star-shaped body with five arms. Body usually has five arms and double rows of tube feet on each arm ... SpongeBob ... Name ______________________________________________________________ IV. CLASSIFICATION OF ECHINODERMATA. Classified under the superphylum Deuterostomia.

After you enable Flash, refresh this page and the presentation should play. Microscopic ossicles are embedded in a muscular body wall. Phylum Echinodermata 2. The body comprises of calcareous plates and movable spines. Echinoderms are triploblastic, coelomate animals with radial symmetry and spiny skin.

They respire through papulae. They have 1, 000 species. From these resemblances, it is clearly proved that the Echinoderms are nearer to the Chordates than any other group. They have tube feet without suckers; Examples: Neometra, Antedon, Rhizocrinus, etc Phylum Echinodermata: General Characteristics and Classification - Phylum Echinodermata Introduction Echinodermata About 6000 species, all marine Echinodermata Major characteristics secondary pentamerous radial symmetry internal ... - Phylum Mollusca Phylum Mollusca * * Myxozoa Uniramia Chelicerformes Crustacea Annelida Mollusca Branchiopoda Chord s inf rieurs Vertebrata Autres pseudocoelomates ... - Phylum: Echinodermata Echinoderms ( spiny skin ) Radial Symmetry (bilateral larvae) No cephalization Deuterostomes - anus forms near blastopore, mesoderm anses ... - Species include- Sea Lilies and Feather Stars. GENERAL CHARACTERISTICS • echino = “bumpy” or“spiny • derm = “skin • Echinoderms are radically symmetrical equal units arranged in a circle around a central disk • Many have five equal units so we can specify that they have pentamerous radical symmetry as adults • Calcareous endoskeleton, often bearing visible spines.

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