Question

If ‘8’ Drosophila in a laboratory population of ‘80’ died during a week, the death rate in the population is__ individuals per Drosophila per week.

• A. 0.1
• B. 10
• C. 1
• D. Zero

Answer 1

Answer: (A)

0.1

Answer 2

$\text{Death rate is given by}= \frac{\text{number of dead individuals}}{\text{total population}}$.
Therefore, the death rate of Drosophila in this case would be: $\frac{8}{80} = \frac{1}{10} = 0.1$.