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| the portion of the marine biome that is shallow enough for light to penetrate |
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| a large group of ecosystems that share the same climax community |
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| a coastal body of water, partially surrounded by land, in which freshwater and saltwater mix |
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| the portion of the shoreline that lies between the high and low tide lines |
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| small organisms that live in the waters of the photic zone |
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| a treeless biome; temperature rarely gets above freezing; the biome closest to the north pole; very little life exists here |
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| a layer of permently frozen ground under the topsoil layer |
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| also known as the coniferous forest; long severe winters, short, mild summers; lynx, caribou, snowshoe hare live here |
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| this biome receives less than 25cm of precipitation annually; very dry with very little vegetation; cacti, coyotes, and scorpion live here |
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| this biome receives 25-75cm of precipation annually; large areas covered with grasses and small plants; lots of grains such as oats, rye, and wheat grow here and therefore, they are called the breadbasket of the world. |
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| contain broad leaved hardwood trees (temperate forest), receives 70 to 150 cm of rain annually; squirrels, deer, rabbits, bear live there |
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| this biome receives 200 to 600 cm of precipitation per year; very warm and wet; lots of biodiversity |
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