Stage 1 - Plants: 5000kcal/m²/year Stage 2 - Primary consumers: 500kcal/m²/year Stage 3 - Secondary consumers: 50kcal/m²/year Stage 4 - Tertiary consumers: 5kcal/m²/year



The diagram shows the energy per square metre per year at different stages in a food chain. What percentage of the energy is LOST from the food chain at each stage? As %​