• bacteria


    Bacteria are...

    Microorganisms that proliferate by cellular division and that lack a nucleus. They are, therefore, considered to be prokaryotes. They are classified according to the structure of their cell wall as either gram-positive or gram-negative. Many bacteria live inside our bodies where they are integral to our health, while others are pathogenic and may cause disease. One species used in the laboratory as a model organism is Escherichia coli.


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