In a temperate deciduous woodland, an ecologist collected population data for a specific food chain:
Describe the shape of the pyramid of numbers that represents this food chain. Refer to the relative widths of the trophic levels in your answer.
Explain why a pyramid of biomass for this woodland food chain would differ in shape from the pyramid of numbers.
State two biological reasons why a significant proportion of the chemical energy stored within the producers is not successfully transferred to the biomass of the primary consumers.
20 exam-style questions on Edexcel IGCSE Biology Feeding relationships. Each one has a worked solution and a mark scheme showing where the marks go.