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1. As a rough average, about 10% of the biomass of organisms at one trophic leve

ID: 264991 • Letter: 1

Question

1.   As a rough average, about 10% of the biomass of organisms at one trophic level ends up being turned into biomass at the next trophic level up.
a)   Using consumption efficiency (CE), assimilation efficiency (AE), and production efficiency (PE), explain why this number is not greater.
b)   What happens to the number of trophic levels that are possible in a food chain if the TLTE increases?
You do not necessarily need these equations to answer the question, but if you want them, here they are:

CE- In/ Pn-1100 AE An / In100 PE Pn/An 100 CE AE PE TLTE (trophic level transfer efficiency): TLTE = 100 100 100 100

Explanation / Answer

1. As a rough average, about 10% of the biomass of organisms at one trophic leve