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Chapter 4 Biology
| Question | Answer |
|---|---|
| carrying capacity | number of organisms of one species that an environment can support indefinitely |
| density-dependent factor | limiting factors such as disease, parasites, or food availabiity that affect growth of a population |
| density-independent factor | factor such as temperature, storms, floods, drought, or habitat disruption that affects all populations, regardless of their density |
| exponential growth | growth pattern where a population grows faster as it increases in size |
| life-history pattern | an organism's pattern of reproduction |
| age structure | proportions of a population that are at different age levels |
| birthrate | number of live births per 1000 population in a given year |
| death rate | number of deaths per 1000 population in a given year |
| demography | study of population characteristics such as growth rate, age structure, and geographic distribution |
| doubling time | time needed for a population to double in size |