my science crossword

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Across
  1. 4. (protect coaslines)
  2. 6. ( provides protection)
  3. 8. ( creates the water current)
  4. 11. (diffuses into cells)
  5. 12. ( gel_like layer)
  6. 14. (means stinging needles)
  7. 15. ( called nematocysts are Coiled)
  8. 18. ( carry nutrients)
  9. 20. ( sponges don move)
  10. 21. ( fliter feeders)
  11. 23. ( contian stinging cells)
  12. 24. (inner tissue layer)
  13. 26. porifera ( most primitive of all animals)
  14. 27. (helps rid of harmful ____)
Down
  1. 1. ( the movement of water into cells throughs0
  2. 2. ( the sponge breaks off)
  3. 3. (float arond)
  4. 4. ( other term for collar cell)
  5. 5. ( fixed in one place)
  6. 7. ( compose of many individuals)
  7. 9. ( their bodies do not display)
  8. 10. ( other term for pores)
  9. 13. ( sponges have no true ___)
  10. 16. (set off by careless touch)
  11. 17. (sponges are ___ feeders)
  12. 19. ( nematocystts contian neuro ___)
  13. 22. (is __ingested__ by collar cells)
  14. 23. (live among the tentacles)
  15. 25. ( both eggs and sperm)
  16. 26. ( from predators)