Echinoderms – Spiny Skin
Post on 30-Dec-2015
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DESCRIPTIONEchinoderms Spiny Skin. Echinoderms movies. Echinoderms Are:. Starfish Sea Lilies Feather Stars Basket Stars Sea Urchins Sea Cucumbers Sand Dollars. There are 5 characteristics:. Radial Symmetry Spiny skin Internal skeleton Water vascular system Tube feet. - PowerPoint PPT Presentation
Echinoderms Spiny SkinEchinoderms movies
Echinoderms Are:StarfishSea LiliesFeather StarsBasket StarsSea UrchinsSea CucumbersSand Dollars
There are 5 characteristics:Radial SymmetrySpiny skinInternal skeletonWater vascular systemTube feet
The internal skeleton of an echinoderm is made of calcium carbonate bony plates that are bumpy or spiny for protection.
An echinoderms water vascular system is a system of canals that carry food and oxygen and remove wastes.
The water vasuclar system also helps an echinoderm move.
Echinoderms have tube feet used for moving and getting food.Tube feet movieTube feet movie 2
ReproductionSexualLarva StageReproduction Movie
5 Class of EchinodermsCrinoidea- Sea LilliesOphiuroidea- Brittle StarsEchinoidea- Sea Urchins and SandollarsHolothuroidea- Sea CucumbersAsteriodea- Starfish
sea lilies and feather starssessile and mobile5 arms extend and branchtube feet filter feed and respiremouth faces up
Ophiuroidea (OH-fee-yoor-OID-ee-uh)long narrow, flexible arms move quicklybasket stars
sea urchins and sand dollarsendoskeleton called testsea urchins eat by scraping algae with jaw-like Aristotle lanternSand Dollars live along seacoastsshort spines used for locomotionsand dollars
Sea Cucumbers soft bodyArmless, they burrow Tube feet around mouthSea cucumbers movieSea Cucumber movie 2
sea stars5 to many arms
A starfish is able to re-grow its arms.
A starfish uses its tube feet to move and to open its food (bivalves).
Digestive GlandReproductive Gland/Gonads
Starfish EatingCanals and Stomach
Water Vascular System
Kingdom of Animals InvertebratesPorifera SpongesFlatworms Turbellaria, Trematoda,,CestodaRoundworms- NematodaRotifersMollusks Gastropoda, Bivalves, CephalopodsAnnelida- Oligochaeta, Polychaeta, HirudineaCnidarians- Hydrozoa, Scyphozoa, AnthozoaArthropods Crustacians, Arachnids, Myriapods and InsectsEchinoderms Crinoidea, Ophiuroidea, Echinoidea, Holothuroidea, Asteriodea.
Invertebrate ExamBe able to identify organisms by Phylum and Class/Order name.Know characteristics of organisms reproduction, eating, body plan, special features, etc.Be able to identify structures off of dissections we have done.