O-LevelBiologyEcology & Environment5090/12 · Oct/Nov 2018 · Q291 Mark

The diagram shows part of a food web. [Figure 29.1] Which pyramid of numbers is based on this food web?

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 of numbers with a wide base, supporting a slightly narrower level, which in turn supports a much narrower top level.

BPyramid of numbers with a wide base, supporting two wider levels above it, then a very narrow top level.

CPyramid of numbers with a wide base, supporting a slightly narrower level, which in turn supports a slightly narrower top level.

DPyramid of numbers with a narrow base, supporting two much wider levels above it, then a narrower top level.

✓ Correct answer

A: Pyramid of numbers with a wide base, supporting a slightly narrower level, which in turn supports a much narrower top level.

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, Oct/Nov 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