| A | B |
|---|
| mutualism | both species benefit from the interaction |
| commensalism | one spcies benefits and the other is unharmed and unaffected |
| parasitism | one species is harmed and the other benefits |
| limiting factor | things like food, water or light which affects population survival and growth |
| carrying capacity | is the maximum population it can support |
| primary succession | an environment that is mostly empty of life - no soil |
| pioneer species | begin the task of creating soil in a barren environment |
| secondary succession | an area with soil with roots below the surface |
| population | of the same species living together in the same area |
| habitat | the place in which an organism lives and obtains resources it needs to survive |
| symbiosis | organisms of two different species living together in a close relationship |
| climax community | the final stable ecosystem |
