Simple Animals: Porifera & Cnidarians

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Across
  1. 1. – Opening
  2. 5. – Separate
  3. 6. – Simple
  4. 7. – Attached
  5. 9. – Both
  6. 12. – Tail
  7. 13. – Support
  8. 14. – Drifter
  9. 15. – Bottom
  10. 17. – Folded
  11. 18. – Pores
  12. 21. – Squeeze
Down
  1. 2. – Complex
  2. 3. – Bell
  3. 4. Feeder – Strainer
  4. 8. – Protein
  5. 10. – Growth
  6. 11. – Dual
  7. 14. – Larvae
  8. 16. – Cavity
  9. 19. – Young
  10. 20. – Stalk