O-LevelBiologyEcology & Environment5090/12 · May/June 2018 · Q291 Mark

A food chain is shown. grain → insects → small birds → owls → lice What is the pyramid of numbers for this food chain? [Figure 29]

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

Apyramid with a wide base, narrowing, then widening, then narrowing

Bpyramid with a wide base, narrowing, then widening slightly, then narrowing again

Cpyramid with a narrow base, widening significantly, then narrowing slightly

Dpyramid with a wide base, narrowing, then narrowing further

✓ Correct answer

D: pyramid with a wide base, narrowing, then narrowing further

Oracle Prep sorts past-paper questions by topic, so you can drill Ecology & Environment and see which topics are most likely to come up next.

Topic: Ecology & Environment, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2018 Paper 1 Variant 2, question 29.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content