Neco Model Questions Vol1 2018 Biology Question 16
Practice objective / multiple choice question 16 from the 2018 Neco Model Questions Vol1 Biology examination.
In a lake ecosystem the net primary productivity (NPP) is 1200 g C m⁻² yr⁻¹. Herbivorous fish directly consume 15 % of the primary production, and the remaining primary production is decomposed and recycled with 30 % efficiency into detritus that is then consumed by detritivores. The overall transfer efficiency from primary producers to primary consumers (herbivores) is 10 %, and from detritus to primary consumers (detritivores) is 5 %. Calculate the total biomass of primary consumers (herbivores + detritivores) that can be supported (in g C m⁻²).
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This is Neco Model Questions Vol1 2018 Biology Question 16. It is one of the objective questions from the 2018 Neco Model Questions Vol1 Biology examination.
Difficulty level: Hard .
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