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Exam Review Chapter 5
Chapter 5 Populations
8
Biology
9th Grade
05/24/2014
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Term
What factors play a role in population growth?
 Definition
Birthrate, death rate, immigration, emigration.
Term
What is the difference between immigration and emigration?
 Definition
Immigration is growth. Emigration is death rate.
Term
Describe exponential growth curve.
 Definition
J-shaped.
Term
Describe logistic growth curve.
 Definition
S-shaped.
Term
What is a limiting factor?
 Definition
Causes population growth to decrease. Affect caring capacity.
Term
What is density-dependent limiting factors?
 Definition
limiting factor that depends on population density.
Term
What is density-independent limiting factor?
 Definition
limiting factor that taffetas all populations in similar ways regardless of the population density.
Term
What type of age structure will result in population growth?
 Definition
lower age groups.
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