What Was The Cause Of The Evolution Of Penicillin

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The major problem with antibiotics, such as penicillin, is that bacteria used to respond to them so well, and now the bacteria has seemed to develop some sort of resistance to the antibiotics, and do not die as easily anymore. This result is the cause of evolution. Back when penicillin was first discovered it was like a miracle cure, and now it does not work nearly as well as it did. Before we had anything to deal with bacterial infections, we had nothing to kill the bacteria, meaning that they had no threats that we could give them. When we introduced the penicillin to the bacteria, it killed the weak ones, only leaving the few that were lucky enough to already have resistances in their genes. As generations of bacteria continued to reproduce,

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