Question

who discovered that mold appeared to kill bacteria?
□ alexander fleming
□ robert koch
□ florence nightingale
□ hippocrates
□ kewpie (partial text, options as visible)

Explanation:

Alexander Fleming discovered that mold (Penicillium) could kill bacteria, leading to penicillin's discovery. The other options: Robert Koch (germ theory), Florence Nightingale (nursing), Hippocrates (medicine father), Newton (physics) don't relate to this discovery.

Answer:

A. Alexander Fleming