The biomass of the producers in a habitat is 3000 kg.
About 10% of the biomass at each trophic level is transferred to the level above.
What biomass would you expect at trophic level 3?
0.3 kg
3 kg
30 kg
300 kg
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.