| A | B |
|---|
| Population Density | the number of individuals per unit area |
| demography | The scientific study of human populations |
| immigration | the movement of individuals into an area can create a population increase |
| emigration | the movement of individuals out of an area can cause a decrease in the population |
| exponential growth | Unlimited resourses, exponential growth occurs |
| logistic growth | Less resources, less population |
| limiting factor | a factor that causes population growth to decrease |
| density dependent limiting factor | A limiting factor that depends on population size |
| Density independent limiting factor | affects all populations in simular ways, regardless of the population size |
