| A | B |
|---|
| Ecosystem | All the biotic and abiotic factors in one area |
| Biotic Factor | An environmental factor that is associated with or results from the activities of living organisms |
| Abiotic Factor | The non-living part of the environment, including water, rocks, light, and temperature |
| Organism | A living thing; anything that can carry out life processes independently |
| Species | A group of organisms that are closely related and can mate to produce fertile offspring |
| Population | A groups of organsims of the same species that live in the same area and can interbreed |
| Community | A group of variosu species that live in the same habitat and interact with each other |
| Habitat | A place where an organism has specialized to live |
| Biosphere | The part of the Earth where life exits |
