Brain › PeopleWho is credited with the discovery of penicillin?Howard Walter FloreyAlexander FlemingAll of theseErnst Boris ChainAnswerThe correct answer is B) Alexander Fleming.More People questionsWhich is correctly ranked highest to lowestIn Chinese nobility, the equivalent of a Count is called:The highest ranked title in British Nobility is:In Germany, a Kaiser is a:The collective peerage of Japan is known as:In Korea, a Panseo is a:Play Brain · Practice