Ch.9 Key Terms Flashcards
Demography
The study of populations.
Age Structure
The distribution of ages in a specific population at a certain time.
Survivorship
The percentage of members of a group that are likely to survive to any given age.
Fertility Rate
The average number of children a women gives birth to in her lifetime.
Migration
The movement of individuals from one area to another.
Life Expectancy
The average number of years members of a population are likely to live.
Demographic Transition
A model that describes how economic and social changes affect population growth rates.
Infrastructure
The basic facilities and services that support a community.
Arable Land
Land that can be used to grow crops.
Urbanization
The movement of people from rural areas to cities.
Least Developed Countries
Countries the show few signs of development and in some cases have increasing death rates while birth rates remain high.
