populations and Communities
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| organism | a living thing
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| habitat | an enivrement that provides the things the organism needs to live ,grow,and reproduce.
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| biotic factor | a living part of an organism's habitat.
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| abiotic | a nonliving part of an organisms habitat
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| photosyithesis | the process in which organisms use water along with sunlight and carbon dioxide to make their own food.
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| Species | A group of organisms that are physically similar and can mate with each other and produce offspring that can also mate and reproduce.
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| population | All the members of one species in a particular area.
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| community | All the differnt populations that live together in an area.
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| ecology | the study of how living things interact with each other and their environment.
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| estimate | Is an approximation of a number, based on responsible assumptions.
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| birth rate | Of a population is a number of births in a population in a certian amount of time.
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| Death rate | The number of deaths in a population in a certian amount of time.
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| Immigration | Moving into a population.
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| Emmigration | Moving out of a population.
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| population density | The number of individuals in an area of a specific size.
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| Limiting factors | is an enviromental factor that causes a population to decrease.
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| carrying capacity | the largest populations that an area can support.
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| natural selection | a charactaristic that makes an individual better suited to its environment tha may eventually become common in that species through a process.
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| adoptions | the behaviors and physical charactaristics that allow organisims to live successfully in their environment.
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| niche | the role of an organism in its habitat, or how it makes its living.
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| competition | the struggle between organisims to survive as they attempt to use the same limited resource.
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| predation | An interaction in which one organism does the killing, in food.
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| Preditor | The organism that does the killing in this case the Tigershark is the preditor.
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| Prey | the organism that is killed in this case the Albatros is the prey.
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| Symbiosis | In a close relationship between two species that benefits at least one of the species.
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| mutuatiasm | a relationship in which both species benefit.
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| commensatism | a relationship in which one species benefits and the other species is neither helped nor harmed.
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| parasite | involves one organism living on or inside another organism and harming it. The organism that benefits.
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| parasitism | involves one organism living on or inside anohter oranism and harming it.
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| Host | the organism that is lives on or in.
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| succession | the series of predictable changes that occur in and over time.
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| primary succession | is the series of changes that occur in an area where no soil or organisms exist.
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| pioneer species | the first species to populate the area.
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| Secondary succession | is the series of changes that occur in an area where the ecosystem has been disturbed.
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Created by:
ljudd
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