Key terms:
Mutation- random unpredictable change in the DNA
Natural Selection- environment of bacteria selects bacteria able to survive
Too many antibiotics lead to antibiotic resistance
When a pathogen becomes unable to be removed, it has gained resistance to the antibiotic caused by mutation in the DNA
1. A bacterium has developed resistance to the antibiotic
2. Bacterium can reproduce to create more anti- biotics
3. New antibiotic resistant bacteria are produced by natural selection
Scientists have to develop a new antibiotic to kill the bacteria
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