Question

plz answer this question ​

Answer 1

Explanation:

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I928, Sir Alexander Fleming observed the bacterial-killing effects of penicillin in his laboratory in London. This was the first step in the discovery of one of the most important pillars of today's medicine: the antibiotics

Answer 2

Answer:

Alexander Fleming

Explanation:

My Dear friend the 1st antibiotic invention done by Alexander Fleming ok we have to Appreciate that legend person and a tip for you that Alexander Fleming discovered the first antibiotic, penicillin. .