AP BIOLOGY

Detailed explanation-1: -demographers study the processes that influence the populations of countries to make comparisons and predictions. these include human behavior, economics, and social structure. countries have been grouped by demographers into two general categories, which define the ends of a continuum in patterns of development.

Detailed explanation-2: -Demography is the science of populations. Demographers seek to understand population dynamics by investigating three main demographic processes: birth, migration, and aging (including death).

Detailed explanation-3: -demography, statistical study of human populations, especially with reference to size and density, distribution, and vital statistics (births, marriages, deaths, etc.).

Detailed explanation-4: -Population is defined as all nationals present in, or temporarily absent from a country, and aliens permanently settled in a country. This indicator shows the number of people that usually live in an area. Growth rates are the annual changes in population resulting from births, deaths and net migration during the year.

Detailed explanation-5: -39. A population pyramid helps demographers predict which age groups will experience the most growth.