__________ is the study of populations

______ the distribution of ages in a specific population at a certain time

To predict _________ a demographer studies a group of people born at the same time and notes when each person dies

A ________survivorship curve shows a population where most individuals live to an advanced age.

__________ curves show populations where all ages have a similar death rate.

Populations that have a ________curve are those in which many offspring die

_______ the average number of children a woman gives birth to in her lifetime.

The movement of individuals from one area to another is ________

The average number of years members of a population are likely to live is their __________

_________ is a model that describes how economic and social changes affect population growth rates

___________ is the basic facilities and services that support a community, such as public water supplies, sewer lines, power plants, roads, schools, and hospitals

________ is land that can be used to grow crops.

_______ is the move ment of people from rural areas to cities

e global community has begun to focus on ________________. These countries show few signs of development and in some cases have increasing death rates while birth rates remain high.