Question

If 6 individuals in a population of 30 frogs died in a year, what would be the death rate in the population during that period?

• A. 0.7
• B. 0.5
• C. 0.2
• D. 0.1

Answer 1

The correct option is C 0.2

Death rate can be defined as the ratio between the number of deaths and the initial population size, in a given time period.

As per the data given in the question,
Initial population of frogs = 30
Number of frogs that died in a year = 6

The following formula can be used to calculate the death rate of a population.
$\text{Death Rate}=\frac{\text{Number of individuals died}}{\text{Initial population size}}$
Death rate = 6/30
= 0.2
Therefore, the correct answer is 0.2 individuals per frog per year.