Changes in fertility, mortality, and migration affect the __________, which refers to the biological and social characteristics of a population, including age, sex, race, marital status, education, occupation, income, and size of household.
a. occupational composition b. gender ratio
c. population composition d. rate of natural increase
Question 2
Which statement most accurately reflects the overall trends in life expectancy for middle- and low-HDI countries?
a. Life expectancies have been steadily b. Although some advances have been made, majordecreasing over the past several problems still exist.decades.
c. Life expectancy in middle- and low-HDI countries has risen to equal the rates in high-HDI countries, thanks to medical technology.
d. Severe life expectancy discrepancies exist because people in middle- and low-HDI countries possess inferior cultural practices regarding health care.
Different parts of the body mature at different rates. “General” refers to the body as a whole: the
Fertility and Population Density, 1850
Migration
Regional differences affect soil fertility
Fertility Lab
The biological clock obviously constrains the social clock