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12 Cards in this Set
- Front
- Back
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Sediment |
sand, silt, clay deposited by water, wind or glaciers |
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Littoral Zone |
area closest to the shore; species include algae, rooted and floating plants |
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limnetic zone |
open water area, well lit and full of plankton |
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Plankton |
free floating organism that live in freshwater or marine ecosystems |
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profundal zone |
deepest area of a lake; colder with less oxygen |
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estuary |
an ecosystem that forms where a freshwater river or stream merges with the ocean |
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wetlands |
areas of land that are saturated with water and support aquatic plants. Include marshes, swamps, and bogs |
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intertidal zone |
narrow band where the ocean meets land; as tides move in it is submerged |
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photic zone |
area shallow enough for sunlight to penetrate. |
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aphotic zone |
sunlight cannot penetrate, constant darkness |
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benthic zone |
area along the ocean floor; consists of sand, silt, and dead organisms |
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abyssal zone |
deepest region of the ocean; very cold |
