Intertidal Crossword

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Across
  1. 3. Stone-like formations created by corals
  2. 4. Photosynthetic organisms often mistaken for plants
  3. 7. Adaptation allowing tidal organisms to blend in with their environment
  4. 9. Cnidarian that looks a bit like a flower
  5. 10. Primary producers in tidal zones
Down
  1. 1. Movement of water back into the ocean
  2. 2. Snail species common in high tide
  3. 5. When oxygen levels deplete dangerously in the water
  4. 6. A variable surrounding salt concentration in water
  5. 8. The amount of zones in an intertidal region