What is the best explanation for the emergence of resistant strains of Staphylococcus aureus?
A)Antibiotics used to fight Staphylococcus aureus infections create resistance in the pathogen.
B)Resistance occurs in all organisms that have short generation times.
C)In many bacteria, artificial selection is stronger than natural selection.
D)In the presence of antibiotics, resistant bacteria in a population survive better than non-resistant bacteria, produce more offspring, and pass on the resistance to their offspring.
E)Resistant strains of Staphylococcus aureus are more fit than nonresistant strains in all environments.

Question

Quizplus · Accepted Answer

The use of antibiotics in fighting Staphylococcus aureus infections creates a selective pressure that favors the survival and reproduction of resistant bacteria. In the presence of antibiotics, bacteria with resistance genes survive better and produce more offspring, passing on the resistance trait to their offspring. Over time, this can lead to the emergence of resistant strains of Staphylococcus aureus.

What Is the Best Explanation for the Emergence of Resistant