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7.4 Trophic levels in an ecosystem

7.4 Trophic levels in an ecosystem

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Question 15
F

Producers transfer some of the energy from the light that reaches them.

What proportion of the incident light energy do producers transfer for photosynthesis?

[1]
A

About 1%

B

About 10%

C

About 50%

D

About 90%

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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