Investigation #4 Domains Vocabulary Flashcard

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archaea

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One of two prokaryotic domains, the other being Bacteria.

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bacteria

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E. coli

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classification

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Assignment of objects or people to categories based on shared characteristics.

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bacterium

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A microscopic prokaryote.

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microorganism

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Microscopic animal or plant.

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prokaryote

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An organism whose cells lack a nucleus.

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eukaryote

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A cell that contains a nucleus and membrane-bound organelles.

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domain

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The highest taxonomic rank in the biological classification system.

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plasmid

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A small ring of DNA that carries accessory genes separate from those of the bacterial chromosome.

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fungus

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An organism that breaks down dead material and returns nutrients to the soil.