Waec Model Questions Vol1 2020 Agricultural Science Question 20

Practice objective / multiple choice question 20 from the 2020 Waec Model Questions Vol1 Agricultural Science examination.

Waec Model Questions Vol1 2020 Agricultural Science Objective / Multiple Choice Hard Difficulty
Question 20 WAEC_MODEL_QUESTIONS_VOL1 • 2020 • AGRICULTURAL_SCIENCE • objective

A fish population in a lake follows the logistic growth model N(t+1) = N(t) + r N(t) (1 - N(t)/K), where the intrinsic growth rate r = 0.5 year⁻¹ and the carrying capacity K = 200,000 fish. Determine the maximum sustainable yield (MSY) in number of fish per year and the corresponding stock size at which this yield is obtained.

Answer Options

Correct Answer A. 25,000 fish per year; 100,000 fish
B. 100,000 fish per year; 200,000 fish
C. 50,000 fish per year; 50,000 fish
D. 12,500 fish per year; 66,667 fish
Correct Answer
A
Correct Option:
25,000 fish per year; 100,000 fish

About This Question

This is Waec Model Questions Vol1 2020 Agricultural Science Question 20. It is one of the objective questions from the 2020 Waec Model Questions Vol1 Agricultural Science examination.

Difficulty level: Hard .

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