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Chapter 21.1

Chapter 21.1 vocab

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
permafrost a permanently frozen layer of soil under the surface
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 continuous layer formed by treetops, that shades the forest floor
epiphyte small plants that live on branches of tall trees ; they use other organisms for support
coniferous tree trees that bear seeds in cones and tend to be evergreen
deciduous tree trees that shed their 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
temperate grassland usually form in the interior of continents, at 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 of rainfall per year
Created by: CoffeyM20