How did improving treatment of patients with antibiotics lead to a new problem?
antibiotics began to cause habitat destruction.
some food sources were contaminated by antibiotics.
some pathogens became resistant to antibiotics.
antibiotics began to interfere with the treatment of inherited diseases.

Some pathogens became resistant to antibiotics.

Explanation:

Antibiotics (or antibacterials) are medications that people take to destroy the growth of bacteria. These medications consist of powerful drugs.

The more antibiotics a person takes, the faster it leads to the development of antibiotic-resistant bacteria. When we take an antibiotic, sensitive bacteria are killed, but there is still a possibility that resistant germs multiply. Gradually, some bacteria have become resistant to antibiotics that once successfully treated them. One such example is Neisseria gonorrhoeae, a species of Gram-negative diplococci bacteria, that has become resistant to benzyl penicillin.

answer; mission;

answer; naturalistic observation;