A-LevelBiologyInfectious diseasesMay/June 2015Paper 1 Q341 Mark
The graph shows the fall in cases of tuberculosis (TB) in a country between 1910 and 2000. Which factors could have contributed to the fall over this period? 1 pasteurisation of milk 2 the provision of new housing 3 chemical treatment of sewage 4 identification of contacts of people infected with TB
A1, 2 and 4
B2, 3 and 4
C1 and 3 only
D1 and 4 only
✓ 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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