Vocab Unit 3 Flashcards
(87 cards)
Arithmitic population density
The population of a country or area expressed as an avarage per unit
Population density
The number of people per given unit of land.
Psychological population density
The number of people per unit of arible land
Population distribution
Locations where populations are.
Megalopolis
Large, diverse, cities
Census
A periodic and offical count of a country’s population.
Doubling time
The time required for a population to double
Population explosion
The rapid growth of human population over the last century
Natural increase
Population growth measured as the excess of live births over deaths
Crude birth rate
The number of live births yearly per thousand people in a population
Crude death rate
The number of deaths yearly per thousand people in a population
Demographic trasition model
A multistage model based on Western Europe’s progression
Stationary population level
The level at which a population ceases to grow
Population composition
Structure of population in terms of age/sex/mertial status/education/etc.
Population pyramids
Visual representations of age/sex compositions of a population
Infant mortality rate
A figure that discribes the number of babies that die within the first year of their lives
Newborn mortality rate
The number of infants that die within the first month of their life
Child mortality rate
Describes the number if children that die between 1-5 years of life
Life expectancy
How long the avarage person will live
Infectious diseases
Spread by viruses/parasites. Diffuse direct/indirect human to human
Chronic/degenrative diseases
Long-lasting afflictions more common because of higher life expectancies
Genetic diseases
Caused by variable/mutation of a gene/group of genes in a human
Endemic
Particular to a locality or region
Expansive pop. Policies
Gov. Policies designed to increase the population