Echinoderms

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Across
  1. 4. Two valves
  2. 7. Flowering animal
  3. 10. Ocean water
  4. 12. Stinging cell
  5. 13. Class with sea cucumbers
  6. 15. Spiny skin
  7. 17. Did you find a pearl?
  8. 18. Not typically found in salad
  9. 20. Immobile life style
  10. 21. sea urchin skeletal remains
  11. 22. The oceans pin cushion
  12. 26. Having 5 arms
  13. 28. Clown fish friend
Down
  1. 1. "Water pipe" runs through arms
  2. 2. sea urchin's mouth
  3. 3. Hydraulic system in echinoderms
  4. 5. Muscular sac on top of tube feet
  5. 6. External shelled cephalopod
  6. 8. Stomach-foot
  7. 9. Leads to radial canal
  8. 11. Ability to expel guts when under stress
  9. 14. Class with see stars/brittle stars
  10. 16. The way water enters echinoderms
  11. 19. Snails for dinner tonight
  12. 23. feet Extensions to help move echinoderms
  13. 24. sessile body form
  14. 25. Body form of free-swimming jellyfish
  15. 27. Head-foot