Ch. 9 Key Terms

Question 1

demography

Answer 1

the study of populations

Question 2

age structure

Answer 2

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

Question 3

survivorship

Answer 3

the percentage of members of a group that are likely to survive to any given age

Question 4

fertility rate

Answer 4

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

Question 5

migration

Answer 5

The movement of individuals from one area to another

Question 6

life expectancy

Answer 6

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

Question 7

demographic transition

Answer 7

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

Question 8

infrastructure

Answer 8

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

Question 9

arable land

Answer 9

land that can be used to grow crops.

Question 10

urbanization

Answer 10

the movement of people from rural areas to cities.

Question 11

least developed countries

Answer 11

These countries show few signs of development and in some cases have increasing death rates while birth rates remain high.