Neco 2020 Biology Question 42
Practice objective / multiple choice question 42 from the 2020 Neco Biology examination.
Researchers sampled a lake of area 2\,km^{2} using five 1\,m^{2} quadrats and recorded the following numbers of a fish species: 12, 15, 9, 13 and 11. The average wet weight of an individual is 0.025\,kg and the energy content of fish tissue is 5\,MJ\,kg^{-1}. Assuming the fish represent the secondary‑consumer level and that trophic transfer efficiency between successive levels is 10\%, estimate the total energy originally captured by primary producers that supports this fish population. Express your answer in megajoules (MJ).
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About This Question
This is Neco 2020 Biology Question 42. It is one of the objective questions from the 2020 Neco Biology examination.
Difficulty level: Hard .
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