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1 Competition occurs when organisms try to use the same
limited resource.
nment
inter
ganisms
2 Biomes are characterized by temperature, precipitation, and
the plant and animal communities that live there.
3 A habitat is the role of a population in its community,
including its environment and its relationship with other
species.
4 A food chain is the feeding relationships among all of the
organisms in an ecosystem.
5 A limiting factor is an environmental factor that increases
the growth of a population.