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Chapter 2 Vocab
Term | Definition |
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Demography | The study of general population trends. |
Population Density | A measure of total population relative to land area |
Arithmetic Population Density | Number of people per unit area of land. |
Population Distribution | The description of the pattern in the spatial arrangement of people, |
Dot Maps | Thematic map where individual symbols represent a certain number of cases of a phenomenon. |
Megalopolis | An urban agglomeration that stretches from Washington, DC in the south to Boston, Massachusetts in the north. |
Natural Increase Rate | When people have more then two children |
Crude Birth Rate | Number of live births per 1000 people among a population in an area in a year. |
Crude Death Rate | Number of deaths per 1000 people among a population in an area in a year. |
Contraceptive Prevalence Rate | Percent of women who are currently using or have a sexual partner who is using a method of contraception. |
Doubling Time | Time required for a population to double in size |
Total Fertility Rate | The average number of children born to a women of child-bearing age |
Old-age Dependency Ratio | Number of people 65 years of age or older for every 100 people between the ages of 15-64 |
Child Dependency Ratio | Number of people between the ages 0 and 14 for every 100 people between the ages of 15-64. |
Population Composition | Structure of a population in terms of age, sex, and other properties such as marital status and education. |
Population Pyramids | A graphic representation of the age and sex composition of a population. |
Demographic Transition | Observation that a country’s birth rate death rate change in predictable ways over stages of economic development. |
Zero Population Growth | A state in which a population is maintained at a constant level because the number of deaths is exactly offset by the number of births |
Infant Mortality Rate | Probability per 1000 live births that a child will die before reaching age 1 year. |
Life Expectancy | The average number of years a person is expected to live. |
Epidemiological Transition | Change in the pattern of mortality in a society from high mortality among infants and periods of widespread famine to high mortality from degenerative diseases with coincide with longer life expectancies |
Infectious diseases | Diseases that are spread by bacteria, viruses, or parasites. Infectious diseases diffuse directly or indirectly from human to human. |
Degenerative Diseases | Diseases that come with old age |
Genetic or Inherited Diseases | Diseases caused by variation or mutation of a gene or group of genes in humans. |
Malaria | Vectored diseases spread by a certain type of mosquitos |
Expansive Population Policies | Government policies designed to encourage large families and raise the rate of population growth |
Eugenic Population Polices | Government policies designed to limit population growth among a certain group of people. |
Restrictive Population Policies | Government policies designed to reduce the rate of natural population increase |