Cnidarians

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Across
  1. 1. mouth down
  2. 3. this unit
  3. 5. line chamber of sponges
  4. 8. this class
  5. 9. mouth up
  6. 12. flat sponge cells
  7. 13. what this is
  8. 15. a cell in tentacles
  9. 16. developing buds
  10. 17. breaking
  11. 18. network of nerves
Down
  1. 1. metazoan division
  2. 2. organ of digestion
  3. 4. fixed
  4. 5. defines the phylum cnidaria
  5. 6. creator of this
  6. 7. zoology teacher
  7. 10. straining to eat
  8. 11. amoebiod cells
  9. 14. small sharp pointed