Across
- 3. In 1947 scientists observed what for the first time?
- 4. At the end of what was penicillin widely available?
- 6. Many scientists believe that feeding these to farm animals may contribute to drug resistance.
- 8. Who discovered penicillin?
- 9. Following the prescription directions strictly is a form of what?
Down
- 1. What causes antibiotic resistance during the replication process?
- 2. What is the ability of an organism to withstand the effects of an antibiotic?
- 5. The introduction of a new antibiotic was quickly followed by the first case of what?
- 7. In 1940 penicillin was tested on what?