1. Chapter 6 Key Terms Pre-View the distribution of males and females among age groups in a population—in this case, the world population age structure

2. the number of deaths per 1,000 people in a population in a given year death rate, or crude death rate

3. We can calculate _______________of an area by subtracting the number of people leaving a population (through death and emigration) from the number entering it (through birth and immigration) during a specified period of time (usually one year). population change

4. is the average number of children that couples in a population must bear to replace themselves. replacement-level fertility rate

5. as countries become industrialized, first their death rates and then their birth rates decline demographic transition

6. the movement of people into (immigration) and out of (emigration) specific geographic areas migration

7. provides educational and clinical services that help couples choose how many children to have and when to have them. family planning

8. is the average number of children born to women in a population during their reproductive years. total fertility rate (TFR)

9. the number of children born to a woman during her lifetime. fertility rate

10. This would be an optimum level that would allow most people to live in reasonable comfort and freedom without impairing the ability of the planet to sustain future generations. cultural carrying capacity

11. the number of children per 1,000 live births who die before one year of age. infant mortality rate

12. the number of live births per 1,000 people in a population in a given year birth rate, or crude birth rate

13. the average number of years a newborn infant can expect to live life expectancy