What is biomass?
What is biomass?
Biomass is the mass of living material in an organism or at a trophic level. It is usually measured as dry mass because water content can vary greatly between organisms.
Step-by-step lessons covering AQA GCSE Biology 7.4.2 Pyramids of biomass for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Start with the foundational topics and build up to the higher-tier material.