4. Population Structure

Question 1

structure can be displayed in a

Answer 1

population or age-sex pyramid

Question 2

population or age-sex pyramid is a

Answer 2

combination bar graph that shows the number or the percentages of the population by age and sex

Question 3

the shape of the population or age-sex pyramid reflects the

Answer 3

long and short term trend in population growth both by natural increase and net migration

Question 4

population pyramids can be used to

Answer 4

determine which stage a country is on the DTM

Question 5

population pyramids vary from

Answer 5

the short broad-based shapes of youthful populations in LDCs to the long, narrow, top-heavy shapes of aging population in MDCs

Question 6

the relationship between the sizes of different age groups in a population can indicate the

Answer 6

dependency ratio which has an impact on economical development of a country

Question 7

generally, the population structure of LDCs is marked by a

Answer 7

higher proportion of young persons, with a sharp decline in numbers at increasing ages

Question 8

The population pyramids of LDCs have wide bases because

Answer 8

of high birth rates and narrow sharply because of high death rates

Question 9

what is the life expectancy in LDCs

Answer 9

life expectancy may be as low as 50 years in some LDCs

Question 10

what results in sex inequalities in the population pyramid structure

Answer 10

migration patterns
some may be sending countries such as Guyana and Jamaica therefore they may have “missing” males or females of working age

• wars
• high maternal mortality

Question 11

example of great variety of population structures within the LDCs

Answer 11

at one extreme, poorer countries such as Papua New Guinea have very young populations while more developed countries, like Barbados have aging population

Question 12

what account for the differences in population structure

Answer 12

• differences in culture, religion and status of women

- levels of poverty

Question 13

what has reduced some life expectancy in some countries to 40-50 years

Answer 13

HIV/AIDS

Question 14

Most caribbean countries would be considered as having what population?

Answer 14

most caribbean countries would be considered as having “youthful” populations, although there is some variation among countries

Question 15

the population structure in more developed countries tend to show a

Answer 15

narrow base reflecting lower birth rates and a relatively small proportion of its population under age 15

Question 16

what is the birth rate of the population structure in MDCs

Answer 16

very low, sometimes below replacement level

Question 17

the apex of the population pyramids in MDCs tend to be

Answer 17

broader than those of less developed countries because life expectancy is high

Question 18

how is the infant mortality rate in population in MDCs

Answer 18

medical care is available from cradle to grave and ensures low infant mortality rates and long lives

Question 19

how is the crude death rate of population in MDCs

Answer 19

the crude death rate may be high as a result of an aging population

Question 20

what are some variations of population structures among MDCs

Answer 20

• countries such as Ireland have high BR, than Sweden with its declining population
• countries with high immigrant populations and have more complex population structures