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7.4 Trophic levels in an ecosystem

7.4 Trophic levels in an ecosystem

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Question 28
H

In a grassland, 12% of the producer biomass is transferred to the primary consumers.

Then 9% of the primary consumer biomass is transferred to the secondary consumers.

What percentage of the producer biomass is transferred to the secondary consumers?

[1]
A

0.0108%

B

0.108%

C

1.08%

D

21%

Markscheme

7.4 Trophic levels in an ecosystem Questions

  1. GCSE
  2. /Biology
  3. /7.4 Trophic levels in an ecosystem

61 exam-style questions on AQA GCSE Biology 7.4 Trophic levels in an ecosystem, covering 7.4.1 Trophic levels, 7.4.2 Pyramids of biomass, and 7.4.3 Transfer of biomass. Each one has a worked solution and a mark scheme showing where the marks go.

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