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9.2 Energy transfer and biodiversity

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Question 4
F

Producers store 24000 kJ of energy in new biomass. Primary consumers store 3000 kJ from this source.

What is the efficiency of this energy transfer?

[1]
A

8.0%8.0\%8.0%

B

87.5%87.5\%87.5%

C

80.0%80.0\%80.0%

D

12.5%12.5\%12.5%

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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