Only about 10% of the biomass at one trophic level is transferred to the trophic level above it.
Describe how biomass is lost between one trophic level and the next in a food chain.
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Markscheme
7.4 Trophic levels in an ecosystem Questions
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.