Table 1 shows the biomass of organisms at each stage in a grassland food chain.
| Organism | Biomass in arbitrary units |
|---|---|
| Grass | 1200 |
| Grasshoppers | 150 |
| Frogs | 30 |
| Hawks | 6 |
Calculate the percentage of the biomass of the grasshoppers that is transferred to the hawks.
Use the equation:
percentage=biomass of hawksbiomass of grasshoppers×100 \text{percentage} = \frac{\text{biomass of hawks}}{\text{biomass of grasshoppers}} \times 100 percentage=biomass of grasshoppersbiomass of hawks×10061 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.