A population of bacteria may evolve resistance to a drug over time. This graph shows the growth of a bacterial population before and after the introduction of an antibiotic, with some bacteria becoming resistant to the antibiotic. Use the graph to answer questions 14+15.
14. Which time point on the graph shows when the antibiotic was first added? A, B, C, or D?
A population of bacteria may evolve resistance to a drug over time.This graph shows the growth of a bacterialpopulation before and after the introduction of an antibiotic,with some bacteria becoming resistant to the antibiotic.Use the graph to answer questions14+15
B
C
D
A Population size 14.Which time point on the graph shows when the antibiotic was first added?AB.Cor D
1