Chapter 4 (Glencoe Biology)
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10 terms
Terms | Definitions |
|---|---|
Exponential growth | Growth pattern where a population grows faster as it increases in size; graph of exponentially growing populations is a J-shaped curve. |
Carrying Capacity | The number of organisms of one species that an environment can support indefinitely |
Life History Pattern | An organisms reproductive pattern. |
Density Dependant factors | Factors that have an increasing effect as the population increases |
Density Independent factors | Factors that can affect populations regardless of their density. |
Demography | The study of human population size, density, movement, and its birth and death rates. |
Birthrate | The number of live births per 1000 population in a given year |
Death rate | The number of deaths per 1000 population in a given year. |
Doubling time | The time needed for a population to double in size. |
Age structure | The proportions of the population that are in different age levels. |
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