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Warm Up

Warm Up. What characteristics do insects share?. Mollusks, Arthropods, and Echinoderms Echinoderms. Chapter 10 Section 5. Discover Activity. How do sea stars hold on? Page 358. Objectives: . To list the main characteristics of echinoderms. To name he major groups of echinoderms.

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Warm Up

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  1. Warm Up What characteristics do insects share?

  2. Mollusks, Arthropods, and Echinoderms Echinoderms Chapter 10 Section 5

  3. Discover Activity • How do sea stars hold on? Page 358

  4. Objectives: • To list the main characteristics of echinoderms. • To name he major groups of echinoderms.

  5. http://www.seinan-gu.ac.jp/~djohnson/natural/fauechinoderms.htmlhttp://www.seinan-gu.ac.jp/~djohnson/natural/fauechinoderms.html

  6. Echinoderms: The "Spiny-skinned" Animals • Echinoderms include • starfish • sea cucumbers • sea urchins • sand dollars • The water vascular system is a system of fluid-filled internal tubes that carry food and oxygen, remove wastes, and help echinoderms move. • All echinoderms use their tube feet to "walk". Some use them to get food.

  7. Echinoderms have an endoskeleton made of hardened plates. • Adults have radial symmetry, usually in multiples of 5. • They reproduce sexually. The fertilized eggs develop into larva which undergo a metamorphosis to become adults.

  8. Star Fish http://www.belowsealevel1.com/echinoderms_03.htm

  9. Starfish • Starfish have five or more arms (or rays) that extend from a central body. • Starfish have the ability to regenerate. • They use their tube feet to capture prey and to move.

  10. http://stjohntour.com/Sealife/echinoderms.htm

  11. Iconocaster longimanus http://sg.homeunix.com/hantu/echinoderms

  12. Sea star on intertidal flat http://sg.homeunix.com/hantu/echinoderms

  13. Basket Star Feather Starfish http://www.seasky.org/reeflife/sea2d1.html

  14. Starfish (with yellow polyps) http://www.pirx.com/gallery/echinoderms/urchin01

  15. Green Stripped Serpent Star http://www.pirx.com/gallery/echinoderms/urchin01

  16. Blue Linkia Star Fish http://www.belowsealevel1.com/echinoderms_07.htm

  17. cushion star http://sg.homeunix.com/hantu/echinoderms

  18. Brittle Stars • Similar in appearance to star fish, but do not have suction cups on their tube feet. • Their arms are long and slender with flexible joints.

  19. Brittle Star http://www.pirx.com/gallery/echinoderms/urchin01

  20. Dwarf Brittle Star http://www.pirx.com/gallery/echinoderms/urchin01

  21. Sea Cucumbers • Resemble a warty cucumber • Head on one end and an anus at the other • Move along the ocean bottom by using the five rows of tube feet on their body surface to wiggle back and forth

  22. Blotched sea Cucumber http://sg.homeunix.com/hantu/echinoderms

  23. Sea Cucumber http://www.belowsealevel1.com/echinoderms_03.htm

  24. Slipper Sea Cucumber http://www.seasky.org/reeflife/sea2d1.html

  25. Sea Urchins and Sand Dollars • Both are round shaped and rayless • Sand dollars are flat • Sea urchins are dome shaped • Have long spines that are used for protection • Some have poisonous sacs found at the tip of each spine that can deliver painful stings

  26. Purple-spined Sea Urchin http://www.pirx.com/gallery/echinoderms/urchin01

  27. Purple Sea Urchin Rock-boring Urchin http://www.seasky.org/reeflife/sea2d1.html

  28. Pencil sea urchin http://www.seashells.org/identcatagories/seaurchins.htm

  29. http://www.mbayaq.org/efc/living_species/print.asp?inhab=143

  30. Tiny Florida Sand Dollar Sea Shell Biscuits Sea Shell Cookies http://www.seashellworld.com/seashells/Sand.html

  31. Homework • Guided Reading and Study Workbook pages 149-151

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