Gce Model Questions Vol1 2018 Biology Question 49
Practice objective / multiple choice question 49 from the 2018 Gce Model Questions Vol1 Biology examination.
Ecosystem 1 has a primary production of \(5000\) MJ yr⁻¹. Energy transfer efficiencies are 12 % (producers → primary consumers), 10 % (primary → secondary), and 8 % (secondary → tertiary). Ecosystem 2 has a primary production of \(4000\) MJ yr⁻¹ with efficiencies 15 %, 9 % and 7 % for the same trophic steps. Assuming 1 MJ supports 1 kg of tertiary‑level biomass, which ecosystem supports more tertiary biomass and how much?
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This is Gce Model Questions Vol1 2018 Biology Question 49. It is one of the objective questions from the 2018 Gce Model Questions Vol1 Biology examination.
Difficulty level: Hard .
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