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10 Cards in this Set
- Front
- Back
Exponential growth |
Growth whose rate becomes ever more rapid in proportion to the growing total number or size |
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Carrying capacity |
The number of organisms of one species that an environment can support indefinitely |
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Life-history pattern |
Population biologists study the factor that determines population growth- an organisms reproduce pattern |
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Density-dependent factor |
Factors where the effects on the size or growth of a population vary with the density of the population itself |
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Density-independent factor |
Any factor limiting the size of a population whose effect is not dependent on the number of individuals in the population |
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Demography |
The study of statistics such as birth, deaths, income, or incidence or disease, which illustrate the changing structure of human populations |
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Birth rate |
The number of live births per thousand of population per year |
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Death rate |
The ratio deaths to the population of a particular area during a particular period of time |
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Doubling time |
The period of time required for a quantity to double in size or value |
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Age structure |
A population pyramid, also called an age pyramid or age picture |