Question

why arent human populations evolving to produce immune systems that are able to fight off mrsa and other \superbugs?\
○ because humans do not have the mutations that would improve their immune systems
○ because human dna is unable to mutate
○ because bacteria do not apply a selection pressure on human populations
○ because humans can only adapt to viral infections, not bacaterial infections
○ because the rate of human evolution is much slower than bacterial evolution

Explanation:

• Option 1: Humans do have mutations that could potentially improve immune systems, so this is incorrect.
• Option 2: Human DNA can mutate, so this is wrong.
• Option 3: Bacteria do apply selection pressure on human populations (e.g., through infections), so this is incorrect.
• Option 4: Humans can adapt to bacterial infections (e.g., through immune responses over time), so this is wrong.
• Option 5: Bacteria reproduce quickly and can evolve resistance (e.g., MRSA) much faster than humans (who have a long generation time). So human evolution rate is slower than bacterial evolution rate.

Answer:

because the rate of human evolution is much slower than bacterial evolution