Demography from the greek 'Demos'
Demography is the statistical study of all parts of a given population. Demographics include such factors as age, income, deaths, and marriages.
Epidemiology is the study of factors affecting the health and illness of populations. The specialist is called an epidemiologist.
populations
demographic
Hemographers
demography
the study of cells, the study of organisms, and the study of populations
It is called social studies
Entomologists study the life of, populations of and behaviors of Insects. Entomology is literally the "study of insects"
Population dynamicstion…
Demographs
demography
populations