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O-LevelBiologyEcology & Environment5090/11 · Oct/Nov 2016 · Q311 Mark

How many times must an uninfected mosquito feed on human blood to transmit the malarial parasite in the human population?

Aonly once
Bat least twice
Cat least three times
Dmore than three times

✓ Correct answer

B: at least twice

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About this question

Topic
Ecology & Environment, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source
O-Level Biology, Oct/Nov 2016 Paper 1 Variant 1, question 31.

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