Chapter 9 Key Terms

Question 1

Demography

Answer 1

the study of populations

Question 2

Age structure

Answer 2

thee distribution in ages in a specific population at a certain time.

Question 3

survivorship

Answer 3

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

Question 4

fertility rate

Answer 4

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

Question 5

migration

Answer 5

the movement of animals from one area to another

Question 6

life expectancy

Answer 6

the average number of years the 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 (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 and cities

Question 11

least developed countries

Answer 11

countries that show few signs of development, wildly increasing death rates while birth rates stay the same