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Very large climatic regions that contain a number of smaller but related ecosystems within them.
A cold and largely treeless biome that forms a continuous belt across northern North America, Europe, and Asia.
Occur near the equator, in the region between 23.5 N and 23.5 S, known as the tropics.
Temperate forests can be characterized by the type of tree that is most common. These trees bear seeds in cones and tend to be evergreen.
Temperate Decidous Forests
Trees that lose all of their leaves in the fall and regrow them each spring.
South of the tundra and north of the temperate regions, a forested biome dominated by coniferous trees suchas pines, firs, and spruces.
Ussually form in the interior of continents, at about the same latitude as temperate decidous forests.
A biome that is dominated by dense, spiney shrubs and has scattered clumps of coniferous trees.
The area of shoreline that is twice daily covered by water during high tide and exposed to air during low tide.
Zone that extends from the intertidal zone over the continental shelf and to relateively shallow water depths of about 180 m.
Lakes that are rich in organic matter and vegetation, so the waters are relatively murky.
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