A-LevelBiologyInfectious diseasesOct/Nov 2009Paper 1 Q371 Mark
A country has fewer than 2.5 deaths per 100 000 people from TB in one year and the next year this rose to 25 deaths per 100 000. What may have contributed to this change? 1 decrease in contact tracing 2 increase in refugee camps 3 water supply contaminated by sewage
A1 and 2
B1 and 3
C2 and 3
D1, 2 and 3
✓ Correct Answer
The correct answer is A. This question tests the candidate's understanding of infectious diseases within the Biologysyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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