O-LevelBiologyEcology & Environment5090/11 · May/June 2014 · Q251 Mark

The bar chart shows the percentage of women who had babies of low weight, amongst smokers and non-smokers. [Figure 25.1] What is shown by the bar chart?

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AMore women smoke during pregnancy than do not.

BSmoking in pregnancy increases the risk of low birth weight.

CSmoking is bad for the health of a pregnant woman.

DWomen whose babies have low birth weight are smokers.

✓ Correct answer

B: Smoking in pregnancy increases the risk of low birth weight.

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Topic: Ecology & Environment, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2014 Paper 1 Variant 1, question 25.

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