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RChapter 21 Section2
| Question | Answer |
|---|---|
| Aphotic Zone | The deeper parts of the ocean, where there is so little light that plants cannot carry out photosynthesis |
| Phiotic Zone | The area of an aquatic system that receives enough light for photosynthesis to occur |
| Intertidal Zone | An area along ocean shorelines that lies between low and high water lines |
| Plankton | The mass of mostly microscopic organisms that float or drift freely in the waters of aquatic (freshwater and marine) environments |
| Estuary | An area where fresh water from rivers mixes with salt water from the ocean; the part of a river where the tides meet the river current |
| Freshwater Wetland | Water that contains insignificant amounts of salts, as in rivers and lakes |