| A | B | 
| ecology | study between living things & environ | 
| limiting factor | restricts population | 
| carrying capacity | largest # of induviduals a species can support | 
| biotic potential | highest rate of production | 
| exponential growth | number of adults grows so does births | 
| decomposer | eats dead matter | 
| niche | organisms role or purpose | 
| food chain | feeding relationship in an ecosystem | 
| food web | totality of interacting food chains in an ecological community | 
| symbiosis | close rel betwenn species | 
| mutualism | symbiotic rel where both species benefit | 
| commensalism | symbiotic rel where organism benefts 7 the other is not affected | 
| cooperation | working together in a common effort | 
| abiotic factors | non-living part of an ecosystem |