Waec Model Questions Vol1 2019 Biology Question 18
Practice objective / multiple choice question 18 from the 2019 Waec Model Questions Vol1 Biology examination.
A lake ecosystem has an annual primary productivity of 800 g C m⁻² yr⁻¹. Thirty percent of this primary production is lost directly to detritus and is not available to consumers. Of the remaining primary production, 10 % is consumed by herbivorous zooplankton. Of the herbivore biomass, 25 % is transferred to secondary consumers, and 15 % of the secondary‑consumer biomass is transferred to tertiary consumers. How many grams of carbon per square metre per year are present in the tertiary‑consumer level?
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About This Question
This is Waec Model Questions Vol1 2019 Biology Question 18. It is a objective / multiple choice question from the 2019 Waec Model Questions Vol1 Biology examination.
Difficulty level: Hard .
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