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Chapter 4
Ag Bio
9
Biology
11th Grade
11/03/2015

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Term
Population density
Definition
The number of people living per unit of an area; the number of the people relative to the space occupied by them
Term
dispertion
Definition
an act, state, or instance of dispersing or of being dispersed
Term
Density-independent factor
Definition
factors, such as weather and climate, exert their influences on population size regardless
Term
density- dependent factors
Definition
any factor limiting the size of a population
Term
emigration
Definition
To leave
Term
immigration
Definition
to come into
Term
carrying capacity
Definition
the number of people, other living organisms or crops that a region can support
Term
demography
Definition
the study of statistics such as births, deaths, income and outcome, ect.
Term
demographic transition
Definition
refers to the transition from high to low
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