| A | B |
|---|
| Environment | The natural world that surrounds all living things. |
| Ecosystem | The interaction of all the living and non-living things at a particular place. |
| Biome | A region of the earth with a particular climate and certain types of plants. |
| Habitat | The place where a living thing is located and gets all its needs met. |
| Niche | Role and organism plays in its habitat. |
| Biotic factor | A living thing in an ecosystem. |
| Abiotic factor | A non-living thing in an ecosystem. |
| Community | The different populations that live in a particular area. |
| Population | A group of organisms of the same species that live in the same place. |
| Biodiversity | The variety of species in an ecosystem |
