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17 Cards in this Set
- Front
- Back
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unicellular
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one-celled
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multicellular
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more than one cell
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heterotrophic
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an organism that needs to eat in order to live
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autotropic
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an organism that makes its own food
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eukaryotic
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cell with a true nucleus
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prokaryotic
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without a nucleus in the cell
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aerobic
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organism needing oxygen in order to live
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anaerobic
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organism that does not need oxygen in order to live
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fission
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simplest form of asexual reproduction.
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flagella
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a long, thin, whiplike structure of some protists that helps them move through moist or wet surroundings
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antibiotic
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chemicals produced by some bacteria that are used to limit the growth of other bacteria.
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saprobe
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organism that feeds on dead or decaying tissues of other organisms
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nitrogen fixing bacteria
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bacteria which change nitrogen gas into a form of nitrogen that plants can use.
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pathogen
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disease producing organism
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toxin
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poisonous substance produced by some pathogens
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endospore
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thick-walled, protective structure produced by a pathogen when conditions are unfavorable for survival.
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vaccine
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preparation made from killed bacteria or damaged particles from bacterial cell walls that can prevent some bacterial diseases
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