3.9. Age distribution


3.9. Age distribution
A population is formed of individuals in different age groups. Birth and death rates and immigration and emigration determine age distribution (proportion of individuals in each age group) of a population. Fecundity (rate at which females produce eggs), fertility (rate at which females produce zygotes), and sex ratio (proportion of male and female in the population) affect birth rate.
Last modified: Saturday, 31 March 2012, 5:31 AM