| A | B |
|---|
| predator | the one that eats |
| prey | the one eaten |
| parasitism | organism lives in or on another and harms it |
| parasite | the harming organism |
| host | the organism being harmed |
| competition | struggle to survive in a habitat with limited resources |
| symbiosis | relationship that benefits at least one of the species |
| mutualism | both species benefit |
| commensalism | one species is benefited and one is neither benefited or harmed |
| immigration | moving into a population |
| emigration | moving out of a population |
| death rate | rate animals die |
| birth rate | rate animals are born |
| predation | one eats, the other is eaten |
| limiting factor | prevents a populaiton from increasing |
| ecology | study of the living organisms and their inacteraction with their non living environment |
| ecosystem | all the communities interacting together |
| habitat | place where an organism lives |
| population | all the organisms of one species in an area |
| community | all the species in an area |
