O-LevelBiologyTransport in Humans5090/12 · May/June 2020 · Q131 Mark

The diagram shows a section through the heart. [Figure 13.1] Which two numbered parts contain oxygenated blood?

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A1 and 2

B2 and 3

C2 and 4

D3 and 4

✓ Correct answer

D: 3 and 4

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Topic: Transport in Humans, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2020 Paper 1 Variant 2, question 13.

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