Multiple Choice
In 1980, only 1% to 5% of all Staphylococcus aureus isolates were MRSA strains. Now 60% to 70% of S. aureus isolates are MRSA strains. This is an example of
A) stabilizing selection of humans.
B) directional selection of humans.
C) directional selection of bacteria.
D) diversifying selection of bacteria.
Correct Answer:

Verified
Correct Answer:
Verified
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