Correct: contain barnacles, contain sea urchins, contain muscles, contain crabs, contain starfish, contain oysters, contain sea lettuce, contains clams, experiences changes in water level due to tides, Contains animals that burrow into the sand for survival., Incorrect: contains kelp forests, contains coral, can be up to 200 meters deep, most productive part of the ocean., Dark very little light., Contains whales, organisms experience lots of pressure due to pressure.,

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