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Hard Marine Biology Crossword Puzzle for ESL Learners is a hard crossword puzzle with 13 clues covering . Play it online for free below, or create your own crossword with our free crossword maker.

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Hard Marine Biology Crossword Puzzle for ESL Learners
Challenge your marine biology vocabulary with this hard crossword puzzle designed for ESL learners. Features advanced terms about ocean life, ecosystems, and marine science.
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Across
  • 1. Living in the open ocean, away from the coast or sea floor
  • 2. Drifting organisms that cannot swim against currents
  • 4. Relating to vents on ocean floor emitting heated mineral-rich water
  • 5. Layer of ocean water where sunlight penetrates enabling photosynthesis
  • 7. Coastal areas where freshwater mixes with seawater
  • 10. Refers to red algae with calcareous deposits forming marine reefs
  • 11. Salt-tolerant trees found in tropical coastal intertidal zones
Down
  • 3. Suborder of swimming decapod crustaceans including shrimps
  • 6. Emission of light by marine organisms through chemical reactions
  • 8. Typo: The scientific study of oceans and marine phenomena
  • 9. Gelatinous marine animal known as comb jelly, distinct from jellyfish
  • 12. Colonial aquatic invertebrates also called moss animals, common in marine habitats
  • 13. Scientific study of fishes
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