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Misha Larkins [42]
3 years ago
13

Which of these BEST describes why certain bacteria have become resistant to penicillin?

Biology
2 answers:
hichkok12 [17]3 years ago
6 0
Antibiotic resistance occurs when bacteria change in some way that reduces or eliminates the effectiveness of drugs, chemicals, or other agents designed to cure or prevent infections. The bacteria survive and continue to multiply causing more harm. Bacteria can do this through several mechanisms.
sveta [45]3 years ago
3 0
<span>Penicillin was so heavily prescribed by doctors that it led to certain, more fit, strains of bacteria to be able to survive.

</span>
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