| A | B |
|---|
| population | a group of the same species ex. lions |
| community | several populations living and interacting with each other |
| organism | any 1 living thing |
| ecosystem | group of communities |
| biotic factor | organisms that are or were alive |
| habitat | an organisms home |
| abiotic factor | any non-living thing |
| symbiosis | a close relationship between 2 organisms |
| niche | the role an organism plays in its environment |
| commensalism | 1 partner benefits, the other gets nothing |
| parasitism | 1 partner benefits, the other gets harmed |
| mutualism | when both partners benefit |
