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Hard Marine Biology Crossword Puzzle for Middle School is a hard crossword puzzle with 5 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 Middle School
Challenge yourself with this hard marine biology crossword puzzle designed for grades 6-8. It features advanced terms related to ocean life and ecosystems.
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Across
  • 1. Layer in the ocean where salinity changes rapidly with depth
  • 2. Comb jelly genus known for rows of cilia used for locomotion
  • 5. Relating to the deep ocean zone between 3,000 and 6,000 meters
Down
  • 3. Light produced by a chemical reaction within a living organism
  • 4. Microscopic drifting organisms forming the base of aquatic food webs
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