Waec Model Questions Vol1 2023 Biology Question 23
Practice objective / multiple choice question 23 from the 2023 Waec Model Questions Vol1 Biology examination.
In a lake the annual primary productivity is 1200 kcal m⁻². Zooplankton consume 45 % of this production. Small fish eat 30 % of the zooplankton biomass and assimilate 70 % of the ingested energy. Piscivorous birds feed on the fish and assimilate 80 % of the energy they obtain from the fish. What percentage of the original primary production is finally assimilated by the birds?
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About This Question
This is Waec Model Questions Vol1 2023 Biology Question 23. It is one of the objective questions from the 2023 Waec Model Questions Vol1 Biology examination.
Difficulty level: Hard .
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