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NEET2023ZoologyOrganisms and PopulationsActual

If there are 250 snails in a pond, and within a year their number increases to 2500 by reproduction. What should be their birth rate per snail per year?

Options

  1. A25
  2. B15
  3. C10
  4. D9

Correct answer

D. 9

Step-by-step solution

Birth rate = N N t Here, N=250 t=1 year N=2500-250=2250 Birth rate = 2250 250 1 =9

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