The questions in this quiz are suitable for GCSE biology students studying trophic levels, pyramids of biomass, and transfer of biomass. If you struggled with the quiz, don't panic - we've got you!

Integrating parasites into food webs also suggests that the classical Eltonian pyramid (Elton 1927) may need to be revised: if parasites feed at a trophic level above their hosts, parasites would ...