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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 :
Options
(a) 15
(b) 5
(c) zero
(d) 10
Correct Answer:
zero
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Ecology and Ecosystem
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Subject: Biology
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In which one of the following the BOD (Biochemical Oxygen Demand ) of sewage
- In which of the following respect the plant hormones differ from enzymes
- AIDS disease was first reported in
- What is the role of NAD in cellular respiration
- Removal of proximal convoluted tubule from the nephron will result in:
Topics: Ecology and Ecosystem (37)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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