O-LevelBiologyTransport in Humans5090/12 · May/June 2021 · Q361 Mark

The table shows four ways in which diseases may be passed from one human to another. Which row shows the ways in which HIV may be transferred? transferred from person to person through air blood saliva semen

Ayes no yes no

Byes no no yes

Cno yes yes no

Dno yes no yes

✓ Correct answer

D: no yes no yes

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Topic: Transport in Humans, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2021 Paper 1 Variant 2, question 36.

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