Respuesta :

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Answer:

Bacterial resistance arises through the simple process of natural selection. Bacteria divide rapidly, but DNA replication is imperfect. In the presence of antibiotics, while most bacteria are killed, a small number of resistant mutants may survive and take over.

Explanation:

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When bacteria are initially exposed to an antibiotic, those most susceptible to the antibiotic will die quickly, leaving any surviving bacteria to pass on their resistant features