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O-LevelBiologyEcology & Environment5090/11 · May/June 2019 · Q311 Mark

How does an anti-malarial drug control malaria?

AIt kills the mosquito when the mosquito bites a person.
BIt kills the pathogen in the bloodstream.
CIt prevents the mosquito from breeding.
DIt stops the pathogen entering a person's blood.

✓ Correct answer

B: It kills the pathogen in the bloodstream.

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About this question

Topic
Ecology & Environment, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source
O-Level Biology, May/June 2019 Paper 1 Variant 1, question 31.

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