Neco 2021 Biology Question 50
Practice objective / multiple choice question 50 from the 2021 Neco Biology examination.
A pond ecosystem contains four trophic groups with the data below:\n\n- Species A (phytoplankton): biomass = 200\ g, \(\delta^{13}C = -30\permil\)\n- Species B (zooplankton): biomass = 50\ g, \(\delta^{13}C = -28\permil\)\n- Species C (small fish): biomass = 20\ g, \(\delta^{13}C = -26\permil\)\n- Species D (large fish): biomass = 5\ g, \(\delta^{13}C = -24\permil\)\n\nAssuming each trophic level enriches \(\delta^{13}C\) by +1\permil relative to its diet, (a) determine the trophic level of species C, and (b) calculate the percentage of the total biomass that is contributed by primary producers.
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About This Question
This is Neco 2021 Biology Question 50. It is one of the objective questions from the 2021 Neco Biology examination.
Difficulty level: Hard .
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