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Environment
organism | a living thing |
biotic factor | A living, or once living part of an organism's habitat |
habitat | An environment that provides the things an organism needs, to live, grow, and reproduce |
abiotic factor | A non living part of an organism's habitat |
species | A group of similar organisms that can mate with each other and reproduce offspring that can also mate, and reproduce |
population | All the members of one species living in the same area |
community | All the different populations that live together in a particular area |
ecosystem | The community of organisms that live in a particular area, along with their nonliving environment |
ecology | The study of how organisms react |
birth rate | The number of births per 1,000 individuals for a certain time period |
death rate | The number of deaths per 1,000 individuals for a certain time period |
immigration | Movement of individuals into a population's area |
emigration | Movement of individuals out of a population's area |
population density | The number of individuals in an area of a specific size |
limiting factor | The environmental factor that causes a population to decrease in size |
carrying capacity | The largest population that a particular environment can support |