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17 Cards in this Set
- Front
- Back
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parasitism
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a relationship in which one organism lives on or in a host and harms it
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host
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the organism that a parasite lives in on or in a parasitism interaction
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commensalism
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a relationship between two species in which one species benefits and the other is not helped nor harmed
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parasite
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the organism that benefits by living on or in a host in a parasitism interaction
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mutualism
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a relationship between two species in which both species benefit
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symbiosis
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a close relationship between two species that benefits at least one of the species
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prey
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an organism that is killed and eaten by another organism
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predator
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the organism that dose the killing in a predation interaction
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predation
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an interaction in which one organism kills another for food
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competition
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the struggle between organisms to survive as they attempt to use the same limited resource
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niche
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the role of an organism in its habitat, or how it makes its living
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adaptations
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a behavior or physical characteristics that allows an organism to live successfully in it envirorment
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natural selection
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a process by which characteristics that make an individual better suited to its environment become more common in a species
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succession
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the series of predictable changes that occur in a community over time
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pioneer species
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the first species to populate an area
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secondary succession
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the series of changes that occur in an area where the ecosystem has been disturbed, but where soil and organisms still exist
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primary succession
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the series of changes that occur in an area where no soil or organisms exist
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