Echinodermata Vocab

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Across
  1. 1. feeding strategy in which echinoderms like sea urchins graze on algae and detritus
  2. 3. the disturbance of sediment by echinoderms particularly sea cucumbers influencing
  3. 5. class of echinoderms including sea urchins and sand dollars with spherical or flattened
  4. 6. from the water
  5. 8. threat to echinoderm populations due to excessive harvesting for food or the
  6. 9. Plates, hard plates forming the endoskeleton of echinoderms providing support and
  7. 11. Feet, flexible fluid filled appendages in echinoderms used for locomotion feeding and other
  8. 13. class of echinoderms including sea lilies and feather stars with a cup like calyx and
  9. 14. arms
  10. 15. Symmetry, a body plan with five fold radial symmetry commonly seen in adult
  11. 20. tube like structure in sea cucumbers that expels sticky threads or toxins as a defense
  12. 21. class of echinoderms including starfish with a central disc and radiating arms
  13. 22. vascular system
  14. 23. cycling and sediment structure
  15. 24. cup like structure in crinoids that houses the vital organs
  16. 26. sieve like opening on the aboral surface of echinoderms that allows water to enter the
Down
  1. 2. class of echinoderms including brittle stars with a central disc and long slender arms
  2. 4. class of echinoderms including sea cucumbers with elongated bodies and leathery
  3. 7. Surface, the upper surface of an echinoderm's body away from the mouth
  4. 10. the ability of echinoderms particularly starfish to regrow lost body parts
  5. 12. Feeding, feeding strategy in which echinoderms like crinoids use tube feet and arms to filter
  6. 16. phylum of marine invertebrates characterized by a spiny endoskeleton radial
  7. 17. and a water vascular system
  8. 18. enclosed in a test
  9. 19. trade
  10. 22. Vascular System, a hydraulic system in echinoderms that powers tube feet for locomotion
  11. 25. and respiration