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Hard Marine Biology Crossword Puzzle for Adults is a hard crossword puzzle with 17 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 Adults
Challenge your marine biology expertise with this hard-level crossword featuring advanced terms like bioluminescence, echolocation, and euryhaline species. Perfect for adults and enthusiasts.
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Across
  • 1. Microscopic drifting animals in aquatic ecosystems
  • 2. Photosynthetic plankton forming base of oceanic food webs
  • 5. Technique used by dolphins to locate prey
  • 6. Phylum including sea stars and sea urchins
  • 8. Relating to coastal water where fresh and saltwater mix
  • 10. Species able to tolerate a wide range of salinity
  • 11. Light-emitting organ found in some deep-sea fish
  • 14. Describes organisms living in open water, not near bottom
  • 16. Refers to organisms living on or in seabed sediments
Down
  • 3. Light produced by living marine organisms
  • 4. Vents seafloor ecosystems depend on for heat and nutrients
  • 7. Stinging cell organelle of cnidarians like jellyfish
  • 9. Class of bony fish in marine and freshwater
  • 12. Salt-tolerant trees critical for coastal habitat
  • 13. Marine comb jellies with rows of cilia for movement
  • 15. Animals living on the surface of the seabed
  • 17. Relating to feeding levels in an ecosystem
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