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Ch. 3.1 - Communities
Ch. 3.1 - Communities
10
Biology
10th Grade
10/03/2012

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Term
abiotic factor
Definition
the nonliving parts of an organism's environment
Term
biotic factors
Definition
all of the living organisms that live in an environment
Term
limiting factor
Definition
environmental factors that affect an organism's ability to survive in its environment
Term
primary succession
Definition
this type of succession takes the longest; the colonization of new sites by communities or organisms; have to create soil from rock
Term
secondary succession
Definition
this type of succession happens more rapidly; the sequence of community changes that takes place after a community is disrupted by natural disasters or human activity; soil is already in the area
Term
climax community
Definition
a stable, mature community that undergoes little or no changes in species
Term
pioneer species
Definition
the first species to be in an area during succession
Term
tolerance
Definition
the ability of an organism to withstand fluctuations in biotic and/or abiotic environmental factors
Term
lichen
Definition
a very common pioneer species made up of both algae and fungus; it can break down rock into soil
Term
community
Definition
a collection of interacting populations
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