Ecologists surveyed a heathland food chain. The table shows the dry biomass they recorded at each consumer level.
| Trophic level | Dry biomass in g/m2 |
|---|---|
| Primary consumers | 96 |
| Secondary consumers | not measured |
| Tertiary consumers | 1.44 |
The efficiency of biomass transfer from the secondary consumers to the tertiary consumers was 15%.
Calculate the efficiency of biomass transfer from the primary consumers to the secondary consumers.
103 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.