An agricultural assessment evaluated the efficiency of five different livestock systems in intensive food production. The study recorded the total mass of dry feed consumed (in tonnes) and the resulting yield of edible protein produced (in tonnes) for each livestock system over a fixed period:
Determine which livestock system is the most efficient at converting dry feed into edible protein. Show your working by calculating the protein conversion efficiency (as a percentage) for each system.
74 exam-style questions on Edexcel IGCSE Biology Food production. Each one has a worked solution and a mark scheme showing where the marks go.