Amdul1cedm6el Amdul1cedm6el
  • 04-03-2017
  • Health
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Who discovered penicillin? user: 1. discovered x-rays, 2. designed first microscope.

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kendraruss
kendraruss kendraruss
  • 04-03-2017
Alexander Fleming discovered penicillin. Wilhelm Roentgen discovered x-rays. Hans Lippershey designed the first microscope
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