Underwater Ecosystems

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Across
  1. 3. Transparent drifter.
  2. 5. Reef builder.
  3. 8. Ray family.
  4. 10. Cephalopod.
  5. 14. Algae type.
  6. 15. Apex predator.
  7. 16. Clawed crustacean.
  8. 17. Ocean giant.
  9. 18. Shell carrier.
  10. 19. Coastal tree.
  11. 21. Spiny sea creature.
  12. 23. Swift predator.
Down
  1. 1. Intelligent mammal.
  2. 2. Seaweed forest.
  3. 4. Unique fish.
  4. 6. Eight arms.
  5. 7. Bivalve mollusk.
  6. 9. Clownfish home.
  7. 11. Drifting organisms.
  8. 12. Snake-like fish.
  9. 13. Echinoderm.
  10. 14. Pincer-clad.
  11. 20. Reef fish.
  12. 22. Marine plant.