JAMB Biology 2011 Objective — Question 37

Question 37 of 60 from the Joint Admissions and Matriculation Board (JAMB) Biology 2011 Objective paper, with the correct answer and a full explanation.

[Capture-recapture data: First capture = 200, second capture = 120; Number of organisms with mark in second capture = 40] The total number of organisms therefore is

A. A. 200
B. B. 360
C. C. 600Correct
D. D. 800

Explanation

N = (first capture x second capture) / marked recaptures = (200 x 120) / 40 = 600.

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