| Term | Definition |
| ABIOTIC | relating to non-living parts of an environment such as sunlight, soil, moisture and temperature |
| BIOME | the largest division of the biosphere which includes large regions with smaller biotic components (e.g similar plants and animals) and similar abiotic components (eg. Similar temperature and amount of rainfall) |
| BIOTIC | relating to living organisms such as plants, animals, fungi and bacteria) |
| COMMENSALIM | a symbiotic relationship which one species benefits and the other species is neither helped no harmed |
| ECOSYSTEM | a part of a biome in which abiotic components interact with biotic components |
| MUTUALISM | a symbotic relationship between two organisms in which both organisms benefit |
| PARASITISM | a symbotic relationship in which one species benefits and another is harmed |
| PREDATION | predator-prey interactions in which one organism (the other predator) eats all or part of another organism (the prey) |
| SYMBOSIS | the interaction between members of two different species that live together in a close association |