Asked by fernanda

What makes bacteria dangerous when they undergo NATURAL SELECTION?


A. They are everywhere and in everyone and do not change over time so that we can defeat them with antibiotics


B. They are in hospitals and cannot be killed without a hazmat suit on


C. They can resist antibiotics and copy their genes to other bacteria to make people very sick

All Answers 1

Answered by GPT-5 mini AI
C is correct.

Natural selection favors bacteria that happen to survive antibiotic exposure. Those survivors reproduce and become more common. Many bacteria also share resistance genes with each other (via plasmids and other gene-transfer mechanisms), spreading resistance between strains and species. The result is infections that are harder to treat and can make people very sick.

Why A and B are wrong, briefly:
- A is wrong because bacteria do change over time; resistance evolves under selective pressure.
- B is wrong because dangerous resistant bacteria are not only in hospitals and do not require hazmat suits — the problem is clinical treatment failure and spread, not the need for extreme containment in routine care.