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Ch 3.2 - Biomes
Ch. 3.2 - Biomes
13
Science
10th Grade
10/08/2012

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Term
photic zone
Definition
the portion of the marine biome that is shallow enough for light to penetrate
Term
aphotic zone
Definition
Term
biome
Definition
a large group of ecosystems that share the same climax community
Term
estuary
Definition
a coastal body of water, partially surrounded by land, in which freshwater and saltwater mix
Term
intertidal zone
Definition
the portion of the shoreline that lies between the high and low tide lines
Term
plankton
Definition
small organisms that live in the waters of the photic zone
Term
tundra
Definition
a treeless biome; temperature rarely gets above freezing; the biome closest to the north pole; very little life exists here
Term
permafrost
Definition
a layer of permently frozen ground under the topsoil layer
Term
taiga
Definition
also known as the coniferous forest; long severe winters, short, mild summers; lynx, caribou, snowshoe hare live here
Term
desert
Definition
this biome receives less than 25cm of precipitation annually; very dry with very little vegetation; cacti, coyotes, and scorpion live here
Term
grasslands
Definition
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.
Term
temperate zone
Definition
contain broad leaved hardwood trees (temperate forest), receives 70 to 150 cm of rain annually; squirrels, deer, rabbits, bear live there
Term
tropical rain forest
Definition
this biome receives 200 to 600 cm of precipitation per year; very warm and wet; lots of biodiversity
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