Answer:
Mutation
Explanation:
Mutation is the process whereby some organisms possessed some characteristics that make them to be resistance to certain stimuli.
In this case,some bacteria have become resistance to chemicals or drugs to the possession of some things or features during development. These things make them different from other strains of that same bacteria.
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Explanation:
A rhetorical question is a figure of speech in the form of a question that is asked to make a point rather than to elicit an answer.
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