Question

In a laboratory there are 40 fruit flies last week and during
experiment 4 fruit flies died in a week. Calculate the death
rate.

Answer 1

Death rate of fruit fly population in one week

According to the given question:

Number of fruit flies died in the tenure under consideration (1 week) = 4

Number of fruit flies in the original population (in the last week) = 40

Death rate = 4/40

= 0.1 individual per fruit fly per week

Final answer

(D) 0.1 individual per fruit fly per week