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9.2 Energy transfer and biodiversity

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Question 1
F

The Figure shows a pyramid of biomass for a food chain in a woodland.

Figure

image

a.

Calculate the percentage of the biomass of the caterpillars that is transferred to the blue tits.

[2]
b.

Give one reason why the biomass of the blue tits is less than the biomass of the caterpillars.

[1]
c.

Explain why the bars in a pyramid of biomass get narrower at each trophic level.

[2]
d.

Explain why this food chain is unlikely to have a fifth trophic level.

[2]
Markscheme

9.2 Energy transfer and biodiversity Questions

  1. GCSE
  2. /Biology
  3. /9.2 Energy transfer and biodiversity

38 exam-style questions on Edexcel GCSE Biology 9.2 Energy transfer and biodiversity, covering 9.2.1 Energy transfer between trophic levels, 9.2.2 Efficiency of energy transfers, 9.2.3 Human interactions and biodiversity, 9.2.4 Benefits of maintaining biodiversity, and 9.2.5 Biological factors affecting food security. Each one has a worked solution and a mark scheme showing where the marks go.

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