| A | B |
| Herbivore | Organisms that only eat plants |
| Autotroph | A producer organism - makes its own food from sunlight |
| Heterotroph | A consumer organism - needs to consume other organisms to get energy |
| Carnivore | Organisms that only eats meat |
| Organism | A living thing |
| Omnivore | Organisms that eat both plants and meat |
| Scavenger | Organisms that dead scraps left by other organisms |
| Decomposer | Organisms (fungi or bacteria) that break down dead organis matter |
| Predator | An organism that kills and eats another organism |
| Prey | An organism that is killed and eaten |
| Habitat | The area in which an organism lives |
| Population | A group of organisms of the same species living together |
| Community | A number of different species living in the same area |
| Biotic | The living parts of an environment |
| Abiotic | The non-living parts of an environment |