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30 Cards in this Set
- Front
- Back
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The study of how living things interact with each other and their environment.
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ecology
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All the different populations that live together in an area
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community
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An organism that is killed and eaten by another organism
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prey
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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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species
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A nonliving part of an organism's habitat.
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abiotic factor
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A relationship between two species in which one species benefits and the other is neither helped nor harmed.
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commensalism
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A living thing.
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organism
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All the number of one species in a particular area
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population
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An environment that provides the things an organism needs to live, grow and reproduce.
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habitat
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The number of births in a population in a certain amount of time.
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birth rate
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A behavior or physical characteristic that allows an organism to live successfully in its environment.
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adaptation
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The organism that benefits by living on or in a host in a parasitism interaction.
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parasite
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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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natural selection
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The role of an organism in its habitat, or how it makes a living.
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niche
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The largest population that an area can support.
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carrying capacity
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Leaving a population.
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emigration
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The number of individuals in an area of a specific size.
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population density
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A close relationship between two species that benefits at least one of the species.
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symbiosis
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The number of deaths in a population in a certain amount of time.
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death rate
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A relationship between two species in which both species benefits.
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mutualism
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The struggle between organisms to survive as they attempt to use the same limited resources.
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competition
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A living part of an organism's habitat.
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biotic factor
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An interaction in which one organism kills another for food.
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predation
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The community of organisms that live in a particular area, along with their nonliving surroundings.
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ecosystem
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Moving into a population
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immigration
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A relationship in which one organism lives on or in a host and harms it.
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parasitism
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The organism that does the killing in a predation interaction.
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predator
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The process in which organisms use water along with sunlight and carbon dioxide to make their own food.
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photosynthesis
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The organism that a parasite lives in or on in a parasitism interaction.
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host
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An environmental factor that causes a population to decrease.
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limiting factor
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