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Ch. 22 7th Grade

Biomes and Ecosystems

TermDefinition
biome geographic area on Earth that contains ecosystems with similar biotic and abiotic features
desert biome that receives very little rain
grassland biome where grasses are the dominant plants
taiga forest biome consisting mostly of cone-bearing evergreen trees
temperate region of Earth between the tropics and the polar circles
tundra cold, dry, and treeless biome that has a layer of permanently frozen soil
coral reef underwater structure made from skeletons of tiny, soft-bodied animals
estuary region along a coastline that forms where streams or rivers flow into a body of salt water
intertidal zone area of ocean shore between the lowest low tide and the highest high tide
salinity amount of salt dissolved in water
wetland aquatic ecosystem that has a thin layer of water covering soil most of the time
climax community stable community that no longer goes through major ecological changes
ecological succession process of one ecological community gradually changing into another
eutrophication process of a body of water becoming nutrient-rich
pioneer species first species that colonize new or undisturbed land
Created by: SSmith01
 

 



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