Waec Model Questions Vol1 2024 Agricultural Science Question 2

Practice objective / multiple choice question 2 from the 2024 Waec Model Questions Vol1 Agricultural Science examination.

Waec Model Questions Vol1 2024 Agricultural Science Objective / Multiple Choice Hard Difficulty
Question 2 WAEC_MODEL_QUESTIONS_VOL1 • 2024 • AGRICULTURAL_SCIENCE • objective

In a fish pond, the catfish population N (in number of fish) follows the logistic growth equation dN/dt = r N (1 - N/K) with intrinsic growth rate r = 0.3 month⁻¹ and carrying capacity K = 2000 fish. Each month, after the natural growth, a fixed proportion h of the population is harvested. Determine the harvesting proportion h (as a percentage) that maximises the sustainable monthly yield, and compute that maximum yield (number of fish harvested per month).

Answer Options

A. h = 12% and maximum yield = 140 fish per month
Correct Answer B. h = 15% and maximum yield = 150 fish per month
C. h = 10% and maximum yield = 120 fish per month
D. h = 20% and maximum yield = 200 fish per month
Correct Answer
B
Correct Option:
h = 15% and maximum yield = 150 fish per month

About This Question

This is Waec Model Questions Vol1 2024 Agricultural Science Question 2. It is one of the objective questions from the 2024 Waec Model Questions Vol1 Agricultural Science examination.

Difficulty level: Hard .

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