Edexcel A-Level Biology A2 5.10 Biomass and Energy Transfer Efficiency Questions

Use biomass and energy data to calculate transfer efficiency, explain respiration and heat losses and relate declining energy to trophic-level limits.

Exam points

calculate energy-transfer efficiency and energy loss between trophic levels
interpret biomass and energy units, distributions and changes in food chains
explain respiration and heat losses and why energy limits higher trophic levels

[Maximum number: 1]

Lions, giraffes and acacia trees are found on the African Plains.
The diagram shows the energy in the trophic levels that these organisms occupy.

Figure for Question Edexcel A-Level Biology A2 5.10 Biomass and Energy Transfer Efficiency Questions question 1 — Edexcel A-Level Biology A2

Calculate the efficiency of energy transfer between trophic level one and trophic level two.

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Edexcel A-Level Biology A2 5.10 Biomass and Energy Transfer Efficiency Questions question 1