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21.1
Terrestrial Biomes
| Question | Answer |
|---|---|
| biome | very large terrestrial ecosystems that contain a number of smaller but related ecosystems within them |
| tundra | a cold and largely treeless biome that forms a continuous belt across northern North America, Europe, and Asia |
| permafrost | a permanently frozen layer of soil under the surface, characterizes the tundra |
| tropical forest | occur near the equator, in the region between 23.5 degrees North and 23.5 degrees South, known as the tropics |
| canopy | the treetops form a continuous layer, which shades the forest floor |
| epiphyte | small plants that live on the tree branches of tall trees; includes mosses, orchids, and bromeliads |
| coniferous tree | a tree that bears seeds in cones and tends to be evergreen |
| deciduous tree | a tree that sheds its leaves each year |
| temperate deciduous forest | trees that lose all of their leaves in the fall and regrow them each spring |
| taiga | a forested biome dominated by coniferous trees, such as pines, furs, and spruces |
| temperate grassland | usually form in the interior of continents, at about the same latitude as temperate deciduous forests |
| savanna | tropical or temperate grasslands that have scattered deciduous trees and shrubs |
| chaparral | a biome that is dominated by dense, spiny shrubs and has scattered clumps of coniferous trees |
| desert | areas that receive an average of less than 25 cm (9.9 in) of rainfall per year |
Created by:
blehrner
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