6 2
The graph shows data about the use of one antibiotic in different countries. It shows the percentage of bacteria that have developed resistance to the antibiotic.
60 50 percentage of bacteria 40 that have developed antibiotic 30 resistance 20 10 0
0
2 4 6 number of doses given per 1000 people per day
8
Explain how bacteria can become resistant to antibiotics. Use evidence from the graph to support your answer. .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... ..................................................................................................................................................... [4] [Total: 4]
Š OCR 2014