1. Warm Up What characteristics do insects share?

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

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

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

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

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

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

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

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

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. http://www.pirx.com/gall ery/echinoderms/urchin 01 Brittle Star

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

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

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

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. http://www.pirx.com/gallery/echin oderms/urchin01 Purple-spined Sea Urchin

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

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

29. SAND DOLLAR -- Live Dendraster excentricus 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