Gce Model Questions Vol1 2024 Biology Question 20
Practice objective / multiple choice question 20 from the 2024 Gce Model Questions Vol1 Biology examination.
A lake has a surface area of \(2\ \text{km}^{2}\). Its annual primary productivity is \(800\ \text{g C m}^{-2}\text{ yr}^{-1}\). At each trophic level, 30 % of the biomass is respired before any transfer to the next level. The transfer efficiencies are 10 % from primary producers to herbivores, 20 % from herbivores to secondary consumers, and 15 % from secondary to tertiary consumers. Estimate the total annual carbon biomass (in tonnes) that can be supported by the tertiary consumers.
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This is Gce Model Questions Vol1 2024 Biology Question 20. It is one of the objective questions from the 2024 Gce Model Questions Vol1 Biology examination.
Difficulty level: Hard .
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