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Discussion

During decline phase

  • A.Microorganisms increase in size of cell and metabolic rate
  • B.The cells start dividing and their number increase by geometric progression
  • C.Rate of multiplication and death becomes almost equal
  • D.Population of the cells decreases

Answer: D

Correct answer: Population of the cells decreases

In the decline (death) phase deaths outnumber divisions, so the viable population falls - often exponentially. Nutrients are exhausted and toxic products have accumulated; some cells lyse altogether.

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