A population reaches a stable-age distribution when
A)the population stops growing.
B)the birthrate is less than the deathrate.
C)the net reproductive rate (R₀)is zero.
D)the proportion of individuals in each age group remains the same.

Question

Quizplus · Accepted Answer

A stable-age distribution is achieved when the proportion of individuals in each age group remains the same over time. This occurs when the birth rate equals the death rate, allowing for a steady-state population size. The net reproductive rate (R₀) can be greater or less than one in a stable-age distribution, as long as the age structure of the population remains constant.

A Population Reaches a Stable-Age Distribution When