Unit 2 Vocab Flashcards
helpp (39 cards)
Age Distribution
the pattern of ages within a population, often visualized as a population pyramid
Age structure diagrams
a graphical representation of the distribution of a population by age and sex
Agricultural density
the number of farmers per unit area of arable land
AIDS
the advanced stage of HIV (Human Immunodeficiency Virus) infection, where the immune system is severely weakened, making the body vulnerable to various illnesses
Arithmetic density
a measure of population density calculated by dividing the total population of a place by its total land area
Baby boom
a significant surge in birth rates, specifically in the United States, between 1946 and 1964
Carrying capacity
the maximum number of people an area can sustainably support, given its resources and environmental conditions.
Census
a systematic collection and recording of data about all members of a population.
Child mortality rate
the number of deaths per 1,000 children within the first five years of their lives
Cohort
a group of people who share a common characteristic or experience, typically age, and are studied together as a unit
Contraception
methods used to prevent pregnancy. This includes devices, medications, procedures, or behaviors that prevent or reduce the likelihood of conception. Contraception plays a role in family planning and demographic trends.
Crude birth rate (CBR)
the total number of live births in a year for every 1,000 people in a population
Crude death rate (CDR)
a measure of mortality, specifically the number of deaths per 1,000 people in a given year
Demographic Transition Model
a theory that explains population growth patterns as a society progresses through economic, social, and technological changes
Demography
the scientific study of population characteristics, focusing on the size, structure, and distribution of human populations
Dependency ratio
a demographic measure that indicates the number of people in a population who are either too young or too old to work (considered dependents), relative to the number of people in the working age group
Doubling time
the time it takes for a population to double in size, assuming a constant rate of natural increase
Ecumeme
the portion of Earth’s land that is permanently inhabited by humans
Endemic
a disease that is constantly present and maintained within a specific population or area at a baseline level
Epidemiological Transition Model
describes the shifting patterns of mortality and disease in a population as it develops
Food security
the state where all people, at all times, have access to sufficient, safe, and nutritious food to meet their dietary needs and preferences for an active and healthy life
Infant mortality rate (IMR)
the number of deaths of infants under one year of age per 1,000 live births in a given population
Life expectancy
the average number of years a person is expected to live, given current social, economic, and medical conditions
Malnutrition
inadequate nutrition, encompassing both insufficient and excessive intake of nutrients, leading to health problems