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a biologist studied the population of rats in a ba
Question:
A biologist studied 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 increase in population is
NEET (UG) - 2013
NEET (UG)
Updated On:
Apr 21, 2025
10
15
05
Zero
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The Correct Option is
D
Solution and Explanation
The correct option is (D): Zero.
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