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20 Cards in this Set
- Front
- Back
organisms
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an individual animal, plant, or single-celled life form.
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species
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a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding
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population
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A population is a summation of all the organisms of the same group or species, who live in the same geographical area, and have the capability of interbreeding
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communities
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a group of people living in the same place or having a particular characteristic in common.
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predation
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the preying of one animal on others
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competition
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is an interaction between organisms or species, in which the fitness of one is lowered by the presence of another
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parasitism
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the relation between two different kinds of organisms in which one receives benefits from the other by causing damage to it (usually not fatal damage)
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mutualism
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is the way two organisms of different species exist in a relationship in which each individual benefits
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commensalism
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an association between two organisms in which one benefits and the other derives neither benefit nor harm.
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adaptation
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An alteration or adjustment in structure or habits, often hereditary, by which a species or individual improves its condition in relationship to its environment.
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evolution
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is defined as any genetic change in a population that is inherited over several generations.
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natural selection
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the process whereby organisms better adapted to their environment tend to survive and produce more offspring
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co evolution
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the influence of closely associated species on each other in their evolution.
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extinction
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the state or process of a species, family, or larger group being or becoming extinct.
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niche
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place or position
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habitat
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the natural home or environment of an animal, plant, or other organism
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prey
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an animal that is hunted and killed by another for food
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host
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a living cell in which a virus multiplies.
noun: host cell; plural noun: host cells |
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parasites
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an organism that lives in or on another organism (its host) and benefits by deriving nutrients at the host's expense.
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predator
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an animal that naturally preys on others
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