Answer:
Explanation:
6. He was investigating a mold growing in Staphylococcus culture dishes, that may have been killing bacteria.
7. He hypothesized that the mold was producing a chemical that killed the bacteria.
8. He tested the hypothesis by growing the mold in a broth then transferring it into a bacteria culture.
9. After putting mold into a culture with bacteria in it, the bacteria then died.
10. Antibiotics
