O-LevelBiologyEcology & Environment5090/11 · May/June 2020 · Q291 Mark

The diagram shows a food chain. grasses → zebras → lions → fleas Which pyramid of numbers would represent this food chain?

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, tapering upwards evenly.

Bpyramid with a wide base, then a narrower block, then a wider block, then a narrower block at the top.

Cpyramid with a very narrow base, a wider block, an even wider block, then a narrower block at the top.

Dpyramid with a narrow base, then a wider block, then a narrower block, then a very wide block at the top.

✓ Correct answer

A: pyramid with a wide base, tapering upwards evenly.

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Topic: Ecology & Environment, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2020 Paper 1 Variant 1, question 29.

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