Igcse Model Questions Vol1 2018 Biology Question 26
Practice objective / multiple choice question 26 from the 2018 Igcse Model Questions Vol1 Biology examination.
In a grassland ecosystem each hectare of primary producers generates \(8{,}000\) MJ of chemical energy per year. Energy is transferred from one trophic level to the next with efficiencies of 12 % (producers → herbivores), 10 % (herbivores → primary carnivores) and 8 % (primary carnivores → secondary carnivores). A secondary‑carnivore species requires \(150\) MJ of energy per individual per year. What is the minimum area of grassland (in hectares, to one decimal place) required to sustain a population of 20 such secondary carnivores?
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About This Question
This is Igcse Model Questions Vol1 2018 Biology Question 26. It is one of the objective questions from the 2018 Igcse Model Questions Vol1 Biology examination.
Difficulty level: Hard .
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