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Chp. 19, Section 2

Vocab for 19.2 Biology

TermDefinition
Growth rate An expression of the increase in the size of an organism or population over a given period of time
Immigration The movement of an individual or a group to a new community or region
Emigration The movement of an individual or group out of its native area
Exponential model Logarithmic growth, or growth in which numbers increase by a certain factor in each successive time period
Limiting factor An environmental factor that prevents an organism or population from reaching its full potential of distribution or activity
Logistic model A model of population growth that assumes that finite resource levels limit population growth
Carrying capacity The largest population that an environment can support at any given time
Density-independent factor A variable that affects a population regardless of the population density, such as climate
Density-dependent factor A variable affected by the number of organisms present in a given area
Inbreeding The crossing or mating of plants or animals with close relatives
Created by: CareGraceR
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