complex food webs, in homogenous vs ... of natural resource management is that forcing functions across trophic levels are considered largely bottom-up in nature (Estes & Peterson 2000).

Although the trophic level of a consumer can be determined by ... Several measures of trophic structure applicable to complex food webs. Journal of Theoretical Biology 83, 195–207 (1980).

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!