Waec Model Questions Vol1 2022 Biology Question 49
Practice objective / multiple choice question 49 from the 2022 Waec Model Questions Vol1 Biology examination.
In a terrestrial ecosystem, primary producers (grass) capture solar energy at a rate of 10 MJ per square metre per year. Energy transfer efficiencies are 10 % from primary producers to herbivores, 15 % from herbivores to primary carnivores, and 20 % from primary carnivores to secondary carnivores. Each secondary carnivore requires 5 MJ of energy per year. If the ecosystem supports 200 secondary carnivores, what is the minimum area of primary‑producer grass (in square metres) required to sustain them? Give your answer as a whole number of square metres.
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About This Question
This is Waec Model Questions Vol1 2022 Biology Question 49. It is one of the objective questions from the 2022 Waec Model Questions Vol1 Biology examination.
Difficulty level: Hard .
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