| A | B |
| Species | Organsisms that can mate and produce reproducing offspring |
| Niche | The job an organism does |
| Habitat | The area in which an organism lives |
| Community | One or more groups of organisms living together |
| Population | The amount of one type of organism |
| Ecosystem | Contains biotic and abiotic factors. |
| Commensalism | One organism benifits while the other is not affected |
| Predation | The larger organism benifits while the smaller does not |
| Parasitism | Smaller organism benifits while the larger does not |
| Mutualism | Both organsism benifit, but can live separately |
| Symbiosis | Organisms must live together |
| Neutral | No direct relationship between organisms |
| biotic | living factor |
| abiotic | non-living factor |
| herbivore | organism that eats plants |
| producer | Photosynthesises energy from the sun |
| consumer | eats other organisms for food. |
| autotroph | A producer |
| heterotroph | A consumer |
| omnivore | eats both producers and consumers |