Neco 2024 Biology Question 41

Practice objective / multiple choice question 41 from the 2024 Neco Biology examination.

Neco 2024 Biology Objective / Multiple Choice Medium Difficulty
Question 41 NECO • 2024 • BIOLOGY • objective

In a forest ecosystem the net primary productivity (NPP) is 1500 g C m⁻² yr⁻¹. Of this NPP, (12\%) is incorporated into herbivore biomass. Of the herbivore biomass, (18\%) is transferred to primary carnivores, and of the primary carnivore biomass, (7\%) is transferred to tertiary predators. In a desert ecosystem the NPP is 900 g C m⁻² yr⁻¹ with transfer efficiencies of (10\%) (herbivores), (15\%) (primary carnivores) and (5\%) (tertiary predators). Calculate the biomass (in g C m⁻² yr⁻¹) of tertiary predators in each ecosystem and state which ecosystem supports the greater tertiary‑predator biomass.

Answer Options

Correct Answer A. Forest ecosystem; 2.27 g C m⁻² yr⁻¹ (forest) and 0.68 g C m⁻² yr⁻¹ (desert) - the forest supports the greater biomass.
B. Forest ecosystem; 1.90 g C m⁻² yr⁻¹ (forest) and 0.68 g C m⁻² yr⁻¹ (desert) - the forest supports the greater biomass.
C. Forest ecosystem; 2.27 g C m⁻² yr⁻¹ (forest) and 0.85 g C m⁻² yr⁻¹ (desert) - the forest supports the greater biomass.
D. Forest ecosystem; 2.27 g C m⁻² yr⁻¹ (forest) and 0.68 g C m⁻² yr⁻¹ (desert) - the desert supports the greater biomass.
Correct Answer
A
Correct Option:
Forest ecosystem; 2.27 g C m⁻² yr⁻¹ (forest) and 0.68 g C m⁻² yr⁻¹ (desert) - the forest supports the greater biomass.

About This Question

This is Neco 2024 Biology Question 41. It is one of the objective questions from the 2024 Neco Biology examination.

Difficulty level: Medium .

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