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Chapter 22.2 vocab

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Term
Definition
aphotic zone   a zone where sunlight cannot penetrate and photosynthesis cannot occur  
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photic zone   the part of the ocean that receives sunlight  
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intertidal zone   the area of shoreline that is twice daily covered by water during high tide and exposed to air during low tide  
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neritic zone   extends from the intertidal zone over the continental shelf and to relatively shallow water depths about 180m  
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oceanic zone   the deep water of the open sea  
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pelagic zone   the open ocean  
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benthic zone   the ocean bottom  
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plankton   communities of small organisms that drift with the ocean currents  
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estuary   occurs where freshwater rivers and streams flow into the sea  
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eutrophic lake   are rich in organic matter and vegetation, so the waters are relatively murky  
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oligotrophic lake   contain little organic matter  
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freshwater wetland   areas of land that are covered with fresh water for at least part of each year  
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