Final answer:
The age structure of a population is an important factor in population dynamics. Economically undeveloped countries tend to have a larger proportion of young individuals and a smaller proportion of elderly people in their age structure diagrams.
Step-by-step explanation:
The age structure of a population is an important factor in population dynamics. Age structure is the proportion of a population at different age ranges. In economically undeveloped countries, the age structure diagram often shows a larger percentage of young individuals and a smaller percentage of elderly people. This is because underdeveloped countries tend to have higher birth rates and shorter life expectancies, resulting in a higher proportion of young people and a lower proportion of old people in the population.