| Date | May 2017 | Marks available | 1 | Reference code | 17M.1.SL.TZ2.27 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Question number | 27 | Adapted from | N/A |
Question
The bacterium Neisseria gonorrhoeae causes infections related to the human reproductive system. The graph shows the percentage of samples in which this bacterium showed resistance to six antibiotics over a period of ten years.
What is a possible explanation for the total percentage resistance being larger than 100% in 2010?
A. People do not take the antibiotics as prescribed.
B. More people have been sampled in that year.
C. There was an epidemic of Neisseria gonorrhoeae in that year.
D. Some bacteria are resistant to more than one antibiotic.
Markscheme
D
Examiners report
[N/A]
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