Neco 2022 Biology Question 39

Practice objective / multiple choice question 39 from the 2022 Neco Biology examination.

Neco 2022 Biology Objective / Multiple Choice Medium Difficulty
Question 39 NECO • 2022 • BIOLOGY • objective

In a lake the incident solar energy is 1500 kJ m\(^{-2}\) per day. Primary production efficiency is 5 %. Zooplankton assimilates 20 % of the phytoplankton production and a fish species consumes 10 % of the zooplankton biomass each day.\n(a) Determine the daily energy (kJ) available to the fish from this primary‑production chain per square metre.\n(b) If each fish requires 250 kJ per day, estimate the maximum number of fish that can be supported per square metre.

Answer Options

Correct Answer A. 1.5 kJ m^{-2} per day; ≈0.006 fish m^{-2}
B. 1.5 kJ m^{-2} per day; ≈0.06 fish m^{-2}
C. 0.15 kJ m^{-2} per day; ≈0.006 fish m^{-2}
D. 15 kJ m^{-2} per day; ≈0.06 fish m^{-2}
Correct Answer
A
Correct Option:
1.5 kJ m^{-2} per day; ≈0.006 fish m^{-2}

About This Question

This is Neco 2022 Biology Question 39. It is one of the objective questions from the 2022 Neco Biology examination.

Difficulty level: Medium .

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