Biology
ronyalvarenga6
2017-08-21 09:56:00
A new antibiotic is introduced and is immediately effective in fighting infections caused by bacteria x. several years later, however, the antibiotic is no longer always effective against bacteria x. the best explanation is
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VickiGouldman18
2017-08-21 13:05:40

Because the bacteria naturally changes or mutates, especially if it is RNA stranded, it will mutate much faster. I hope this helps brainilest would be greeeeat!

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