Science Multiple Choice Test

Geographic area on Earth that contains ecosystems with similar biotic and abiotic features

biome that receives very little rain

biome where grasses are the dominant plants

forest biome consisting mostly of cone-bearing evergreen trees

region of Earth between the tropics and the polar circles

cold, dry, and treeless biome that has a layer of permanently frozen soil

underwater structure made from skeletons of tiny, soft-bodied animals

regoin along a coastline that forms where streams or rivers flow into a body of salt water

area of ocean shore between the lowest low tide and highest high tide

amount of salt dissolved in water

aquatic ecosystem that has a thin layer of water covering soil most of the time

stable community that no longer goes through major ecological changes

process of one ecological community gradually changing into another

process of a body of water becoming nutrient rich

first species that colonize new or undisturbed land

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