1.

If 8 invididuals in a laboratory population of 80 fruit flies died in a week, then what would be the death rate for population for the said period ?

Answer» Fruitflies in laboratory = 80
Fruitflies died in a week = 8
`therefore ` Death rate = `("Flies died")/("Total flies") xx 100 = (8)/(80) xx 100 = 10`%.


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