In many ecosystems, the efficiency of biomass transfer from herbivores to carnivores is higher than the efficiency from producers to herbivores.
Which statement explains this?
Carnivores respire less because they move less than herbivores
Carnivores excrete less urea because meat contains less protein
Herbivores eat a smaller mass of food each day than carnivores
Plant biomass is harder to absorb, so herbivores egest more of it
61 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.