Ecology chapter 1 S
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| Organisism | A living thing
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| habitat | An enviorment that provides thing that a specific organisms needs to live,grow, and reproduce.
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| Biotic factor | A living or once living part of an organisms habitat.
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| Abiotic factor | A non living part of an organisms habitat.
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| species | A group of organisms that can mate with each other.
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| population | All the members of one species living in the same area.
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| comunity | All the different populations that live together in a particular area.
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| ecosystem | The community of organisms that live in a particular area.
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| ecology | The study of how organisms interact
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| Birth rate | Number of births per 1,000 individuals for a certain time period.
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| Death rate | Number of deaths per 1,000 individuals for a certain time period.
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| imigration | Movement of individuals into a population's area.
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| emigration | Movement of individuals out of a population's area.
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| Population density | Number of individuals in an area of specific size.
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| limiting factor | An enviromental factor that causes a population to decrease in size.
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| carrying capasity | The largesest population that a particular enviorment can support.
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| Natural Selection | The process by which organisms that are best adapted to their enviorment .
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| Adaptation | An inherited behavior or physical characteristic that helps an organism survive.
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| Niche | How an organism makes its living and interacts with biotic and abiotic factors.
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| Competition | the struggle between organisms to survive together in a particular area.
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| predetation | An interaction in which organism kills another for food.
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| preditor | The organism that does the killing
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| Prey | An organism that is killed and eaten by another organism in a predation interaction.
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| Symbiosis | Any relationship in which two species live closely together.
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| MUTUALISM | A type of symbiosis in which both species benefit from living together.
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| Commensalism | A type of symbiosis between two species benefit.
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| Parasitism | A type of symbiosis in which one organism lives with.
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| Parasite | The organism that benefits by living with.
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| Host | An organism that a parasite lives with.
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| Succsession | The series of predictable changes that occur in a community overtime.
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| Primary succession | The series of changes that occur in an area.
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| Pioneer species | The first speices to populate an area during succession.
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| Secondary succession | The series of changes that occur in an area where the ecosystem has been disturbed.
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