| A | B |
|---|
| physical environment | air, soil, weather, water, landforms |
| individual | a single organism in an environment |
| population | all the individual organisms in an environment |
| community | all the populations in an environment |
| ecosystem | made up of the community and physical environment |
| habitat | where a population lives in the environment |
| niche | a population's role in the environment |
| limiting factors | things such as soil, temperature, and rainfall that determine what plants grow in an area |
