AQA A-level Biology Energy Transfer Calculations

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User148
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I'm having some trouble with Question 22e(i): https://pmt.physicsandmathstutor.com...ms%20-%201.pdf

I don't really get how to figure out what the percentages are using the graph.

The mark scheme is here: https://pmt.physicsandmathstutor.com...-%201%20MS.pdf

I managed to figure out 10% is passed down making the biomass of the primary consumer 40Kj from what I already know but I don't know how to read from the graph for the following steps.
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TSR Jessica
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Sorry you've not had any responses about this. Are you sure you've posted in the right place? Here's a link to our subject forum which should help get you more responses if you post there.
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