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Pre-Test
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1
The habitat of an earthworm is
A)to be a parasite.
B)aquatic environments.
C)topsoil.
D)eating dead organic matter.
2
Large regional communities determined primarily by climate are known as
A)ecosystems.
B)seres.
C)biomes.
D)None of the above.
3
The primary factor that determines whether a geographic area will support temperate deciduous forest or prairie is
A)the amount of rainfall.
B)the severity of the winters.
C)the depth of the soil.
D)the kinds of animals present.
4
Where would you find primary succession occurring?
A)a clear-cut forest
B)abandoned agricultural field
C)prairie burned by fire
D)rock exposed by glaciers
5
Mutualism, parasitism, and commensalism are all examples of
A)nitrogen-fixing bacteria.
B)symbiosis.
C)habitats.
D)competition.





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