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pac l1
| Term | Definition |
|---|---|
| organism | |
| habitat | An environment that provides the things a specific organism needs to survive |
| Biotic factor | A living or once living part of an organism's habitat the number of births per 1,000 individuals |
| Abiotic factor | A nonliving part of an organism's habitat |
| species | |
| population | |
| community | All different populations that live together |
| ecosystem | The community of organisms that live in a particular area |
| ecology | The study of how organisms interact with each other |
| birth rate | |
| death rate | The number of deaths per 1,000 individuals |
| immigration | Movement of individuals into a populations' area' |
| emigration | Movement of individuals out of the populations area |
| population density | |
| limiting factor | An environmental factor that causes a population to decrease in size |
| carrying capacity | |
| natural selection | The process by which organisms that are best adapted to their enviorment |
| adaption | An inherited behavior or physical characteristic that helps an organism survive |
| niche | How an organism makes it living and interactions |
| competition | The struggle between organisms to survive |
| predation | |
| predator | |
| prey | |
| symbiosis | |
| mutualism | A type of symbiosis in which both species benefits from living together |
| commensalism | A type of symbiosis between two species which in one species benefits and the other is not helped nor harmed |
| parasitism | |
| parasite | |
| host | An organism that a parasite lives with, in, or on and provides a source of energy |