yaritzy5732 yaritzy5732

19-01-2024
Biology

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Suppose there are 200 rats in a rat colony in January. 160 are still alive at the start of March and 120 are still alive at the start of May.
What is the mortality rate from the beginning of March to the beginning of May?
A. 20%.
B. 25%.
C. 30%.
D. 35%.

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