Neco Model Questions Vol1 2022 Biology Question 28
Practice objective / multiple choice question 28 from the 2022 Neco Model Questions Vol1 Biology examination.
In a freshwater lake (Ecosystem A) the net primary productivity is \(800\ \text{g C m}^{-2}\text{yr}^{-1}\). Energy transfer efficiencies are 10% from producers to primary consumers, 8% from primary to secondary consumers, and 5% from secondary to tertiary consumers. In a terrestrial forest (Ecosystem B) the net primary productivity is \(1500\ \text{g C m}^{-2}\text{yr}^{-1}\) with efficiencies 12%, 7% and 4% respectively. Assuming the biomass at each trophic level is proportional to the energy it receives, calculate the ratio of the biomass of the tertiary consumer in Ecosystem A to that in Ecosystem B. Give your answer as a decimal to two significant figures.
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This is Neco Model Questions Vol1 2022 Biology Question 28. It is one of the objective questions from the 2022 Neco Model Questions Vol1 Biology examination.
Difficulty level: Hard .
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