Question

A population’s emigration in one month totaled three individuals. During the same period, immigration was 17 individuals. Birth rate was 12, and mortality was 26 due to a parasite infection. What was the net effect on the population?
a) -14
b) 0
c) +12
d) +26

Answer 1

Answer:

b) 0

Explanation:

Given that:

Emigration = 3, Immigration = 17, Birth = 12, and Mortality = 26

Net effect on the population, which is the change in population, can be calculated using the formula (Births + Immigration) - (Mortality + Emigration)

Therefore, Net effect = (12 + 17) - (26 + 3)

                                   = 29 – 29

                                   = 0

The net effect on the population is 0. There is no increase or decrease in the total population