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Unformatted text preview: spiny shrubs, succulent plants and hard grasses to many areas with no vegetation covered by shifting sands and salt flats. The tundra biome is found at high latitudes and high elevations. Plants include low herbs, dwarf shrubs, sedges, grasses, mosses and lichens. At high latitudes plant growth is influenced by long winters with little light and short cool summers with very long days. Permafrost underlies the surface and restricts drainage and root development. As elevation increases, temperatures decrease and precipitation increases leading to a sequence of vegetation zones or life zones related to altitude. Climate changes with latitude and longitude are reflected in changes in vegetation. These changes are gradual not abrupt....
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- Fall '09