Bio 220 Exam 2 2023/2024 with 100%
correct answers
Factors that limit population size - correct answer disease, war, famine, migration, high infant
mortality, cultural factors (late marriage) etc.
Carrying Capacity - correct answer number of organisms in a given species that can be supported
indefinitely
Malthus - correct answer Wrote "An Essay on the Principle of Population" 1798
-predicts population (exponential growth) will outgrow food supply (steady growth)--environmental
degradation
Demography - correct answer -The scientific study of population ecology to the study of humans
-Vital statistics: population size, structure, sex, age, BR, DR, migration
Crude Birth Rate - correct answer number of births per year for every 1,000 people
Crude Death Rate - correct answer number of deaths per year for every 1,000 people
Marx - correct answer Argues population growth results from poverty and resource depletion
Zero Population Growth - correct answer occurs when birth rate and death rate are equal/stable
Total Fertility Rate (TFR) - correct answer estimated average number of children a woman produces in
her child bearing years
Replacement Fertility Rate - correct answer number of offspring a couple produces to replace
themselves
, Natural Growth Rate - correct answer the difference between the crude birthrate and crude death rate
(BR - DR)
Factors that affect life expectancy. - correct answer -age
-healthcare/technology
-nutritious food
-better sanitation
-awareness/availability of resources (health care)
Dependency Ratio - correct answer -number of non-working compared to working individuals in a
population
-US concern: not enough incoming working class to replace retired
Poverty & Population Growth factors - correct answer -higher poverty levels equate to higher
population growth
-economic development allows for population control (education in family planning & access to
resources)
Empowering women - correct answer -education plays vital role in giving women the power to make
decisions regarding their lives and reproductive behavior.
-women make up 70% of poor and 64% of illiterate individuals in world population
Demographic Transition - correct answer -model of economic and cultural change to explain decline BR
& DR in industrializing nations
-need for large families lessens with mortality
-focus is on quality of life
Less developed countries (LDC) - correct answer -80% of world population
-account for 90% of projected growth (high birthrate)
-young, poor and rapidly growing
correct answers
Factors that limit population size - correct answer disease, war, famine, migration, high infant
mortality, cultural factors (late marriage) etc.
Carrying Capacity - correct answer number of organisms in a given species that can be supported
indefinitely
Malthus - correct answer Wrote "An Essay on the Principle of Population" 1798
-predicts population (exponential growth) will outgrow food supply (steady growth)--environmental
degradation
Demography - correct answer -The scientific study of population ecology to the study of humans
-Vital statistics: population size, structure, sex, age, BR, DR, migration
Crude Birth Rate - correct answer number of births per year for every 1,000 people
Crude Death Rate - correct answer number of deaths per year for every 1,000 people
Marx - correct answer Argues population growth results from poverty and resource depletion
Zero Population Growth - correct answer occurs when birth rate and death rate are equal/stable
Total Fertility Rate (TFR) - correct answer estimated average number of children a woman produces in
her child bearing years
Replacement Fertility Rate - correct answer number of offspring a couple produces to replace
themselves
, Natural Growth Rate - correct answer the difference between the crude birthrate and crude death rate
(BR - DR)
Factors that affect life expectancy. - correct answer -age
-healthcare/technology
-nutritious food
-better sanitation
-awareness/availability of resources (health care)
Dependency Ratio - correct answer -number of non-working compared to working individuals in a
population
-US concern: not enough incoming working class to replace retired
Poverty & Population Growth factors - correct answer -higher poverty levels equate to higher
population growth
-economic development allows for population control (education in family planning & access to
resources)
Empowering women - correct answer -education plays vital role in giving women the power to make
decisions regarding their lives and reproductive behavior.
-women make up 70% of poor and 64% of illiterate individuals in world population
Demographic Transition - correct answer -model of economic and cultural change to explain decline BR
& DR in industrializing nations
-need for large families lessens with mortality
-focus is on quality of life
Less developed countries (LDC) - correct answer -80% of world population
-account for 90% of projected growth (high birthrate)
-young, poor and rapidly growing
