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mr. charles11

Ch.18 LTI-MA 509

Poultry

Question	Answer
Chain migration	The migration event in which individuals follow the migratory path of preceding friends or family members to an existing community.
Crude Birth Rate CBR	the number of live births per year per 1,000 people
Crude Death Rate	the number of deathers per year per 1,000 people
Demographic Transition Model	A sequence of demographic changes in which a country moves from high birth and death rates to low birth and death rates through time.
Demography	the study of human populations
dependency ratio	the ratio of the number of people who are either too old or young to provide for themselves to the number of people who must support them through their own labor. This is usually expressed in the form n:100 where n equals the number of dependents
doubling time	time period required for a population to experiencing exponential growth to double in size completely
emigration	the process of moving out of a particular country, usually, the individual person's country of origin
forced migration	the migration event in which individuals are forced to leave a country against their will
immigration	the process of individuals moving into a new country with the intentions of remaining there
infant mortality rate	the percentage of children who die before their 1st birth day within a particular area or country
internal migration	the permanent or semipermanent movement of individuals within a particular area or country
life expectancy	the average age individuals are expected to live, which varies across space, between genders, and even between races
migration	a long-term move of a person from one political jurisdiction to another
natural increase rate	the difference between the number of births and number of deaths with in a particular country
Neo-Malthusian	advocacy if population control programs to ensure enough resources for current and future population
overpopulation	a value judgement based on the notion that the resources of a particular area are not great enough to support that area's current population
population density	a measurement of the number of persons per unit land area
population geography	a division of human geography concerned with spatial variations in distribution, composition, growth, and movement of population
population pyramid	a model used in population geography to show the age and sex distribution of a particular population
pull factors	attractions that draw migrants to a certain place, such as a pleasant climate and employment or educational opportunities
push factors	incentives for potential migrants to leave a place, such as a harsh climate, economic recession, or political turmoil
refugees	people who leave their home because they are forced out, but not because they are being officially relocated or enslaved
total fertility rate	the average number of children born to a women during a childbearing years
voluntary migration	movement of an individual who consciously and voluntary decides to locate to a new area-the opposite of forced migration
zero population growth	proposal to the end population growth though a variety of official and nongovernmental family planning programs