Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
IGHS Winkels
Biology Chapter 5
| Term | Definition |
|---|---|
| Population Density | the number of individuals per unit area |
| Immigration | the movement of individuals into an area |
| Emmigration | the movement of individuals out of an area |
| Exponential growth | occurs when the individuals in a population reproduce at a constant rate |
| Logistic growth | occurs when a population's growth slows or stops following a period of exponential growth |
| Carrying capacity | the largest number of individuals that a given environment can support |
| Limiting factor | a factor that causes population growth to decrease |
| Density-dependent limiting factor | a limiting factor that depends on population size |
| Predator-prey relationship | one animal kills another animal for food |
| Density-independent limiting factors | Ex. unusual weather, natural disasters, seasonal cycles, and certain human activities such as damming rivers affect everyone |
| Demography | the scientific study of human populations |
| Demographic transition | a dramatic change in birth and death rates |
| Age-structure diagrams | show the population of a country broken down by gender and age group |
Created by:
Winkels