Published by:
CGP EDU Academic Team
Published on: August 21, 2026
A biologist studies the population of rats in a barn. He found that the average natality was 250, average mortality 240, immigration 20 and emigration 30. The net increased in population is-
Text Solution
Verified by ExpertsThe correct answer is:
C
Net population increase is calculated as:
(Natality + Immigration) − (Mortality + Emigration)
Substituting the values:
(250 + 20) − (240 + 30) = 270 − 270 = 0
So, the net increase in population is zero.
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