Researchers are designing several experiments to test the ability of Salmonella bacteria to develop antibiotic resistance. A culture of Salmonella bacteria is exposed to the same concentrations (200 mg/L) of an antibiotic for four days. The table shows the number of isolated resistant bacteria over a four-day period. Which of the following statements best explains these results? Day Number of Resistant Bacteria in the Culture 1 5 2 59 3 677 4 32,456
Researchers are designing several experiments to test the ability of Salmonella bacteria to develop antibiotic resistance. A culture of Salmonella bacteria is exposed to the same concentrations (200 mg/L) of an antibiotic for four days. The table shows the number of isolated resistant bacteria over a four-day period. Which of the following statements best explains these results? Day Number of Resistant Bacteria in the Culture 1 5 2 59 3 677 4 32,456
Chapter9: Parenteral Medication Labels And Dosage Calculation
Section: Chapter Questions
Problem 1.1P
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Researchers are designing several experiments to test the ability of Salmonella bacteria to develop antibiotic resistance. A culture of Salmonella bacteria is exposed to the same concentrations (200 mg/L) of an antibiotic for four days. The table shows the number of isolated resistant bacteria over a four-day period. Which of the following statements best explains these results?
Day |
Number of Resistant Bacteria in the Culture |
1 |
5 |
2 |
59 |
3 |
677 |
4 |
32,456 |
The bacteria were not affected by the antibiotic.
After being exposed to the antibiotic, the bacteria altered the antibiotic.
A new species of bacteria emerged after the antibiotics were introduced.
Random mutations led some bacteria to be resistant and, over time, they increased in the population.
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