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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 :
  • a)
    10
  • b)
    15
  • c)
    05
  • d)
    zero
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
A biologist studied the population of rats in a barn, He found that th...
Natality = 250, Immigration = 20
Mortality = 240, Emigration = 30
Increase in Popolution size
P.D = [(Natality + Immigration) – (Mortality + Emigration)]
= [(250 + 20) – (240 + 30)]
= 0
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A biologist studied the population of rats in a barn, He found that the average natality was 250, averagemortality 240, immigration 20 and emigration 30. The net increase in population is :a)10b)15c)05d)zeroCorrect answer is option 'D'. Can you explain this answer?
Question Description
A biologist studied the population of rats in a barn, He found that the average natality was 250, averagemortality 240, immigration 20 and emigration 30. The net increase in population is :a)10b)15c)05d)zeroCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A biologist studied the population of rats in a barn, He found that the average natality was 250, averagemortality 240, immigration 20 and emigration 30. The net increase in population is :a)10b)15c)05d)zeroCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A biologist studied the population of rats in a barn, He found that the average natality was 250, averagemortality 240, immigration 20 and emigration 30. The net increase in population is :a)10b)15c)05d)zeroCorrect answer is option 'D'. Can you explain this answer?.
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