A biologist studied the population of rats in a barn. He found that the average natality…
Biology · NEET · NTA Exams — Organisms and Populations
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:
- 15
- 05
- zero
- 10
Answer
(C) zero
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