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| 7247766444 | Common | Publicly owned, "no ownership", renewable resources. | 0 | |
| 7247768461 | Tragedy of the Commons | Open-access renewable resources and shared resources are environmentally degrading. | 1 | |
| 7247773883 | Demographics | Population experts. | 2 | |
| 7247775692 | Cultural Carrying Capacity | Maximum number of people who could reasonably live with out decreasing the ability of earth to sustain further generations. | 3 | |
| 7247780005 | Population | A group of interbreeding individuals of the same species. | 4 | |
| 7247782824 | Opportunists | Get resources when they have the opportunity to. | 5 | |
| 7247786431 | Limiting Factor Principle | Too much or too little of any physical or chemical factor can limit or prevent the growth of a population, even if all other factors are at or near the optimal range of tolerance. | 6 | |
| 7247791741 | Population Density | The number of individuals in a population found within a defined area. | 7 | |
| 7247793523 | Environmental Resistance | The combination of all factors that act to limit growth of a population. | 8 | |
| 7247795803 | Carrying Capacity | The maximum population of a species that a habitat can sustain indefinitely. | 9 | |
| 7247798539 | Population Crash | Population has a sharp decline. | 10 | |
| 7247800895 | Crude Birth Rate | Number of live births per 1,000 people. | 11 | |
| 7247801971 | Crude Death Rate | Number of deaths per 1,000 people. | 12 | |
| 7247805556 | Population Change | (Births + Immigration) - (Deaths + Emigration) | 13 | |
| 7247809794 | Fertility Rate | How many children are born in a population over a set period of time. | 14 | |
| 7247813403 | Replacement-Level Fertility Rate | The average number of kids a couple must have to replace themselves. | 15 | |
| 7247814554 | Total Fertility Rate | Average number of children born to women in their reproductive years. | 16 | |
| 7247816709 | Life Expectancy | Average age someone will live to. | 17 | |
| 7247819301 | Infant Mortality Rate | Average number of infant deaths before their first birthday out of 1,000. | 18 | |
| 7247821732 | Migration | Movement of people. | 19 | |
| 7247822671 | Age Structure | Number of males and females in young, middle, and old age range. | 20 | |
| 7247826698 | Demographic Transition | As countries become industrialized and economically developed, the population will grow slowly. | 21 | |
| 7247831291 | Family Planning | Helps couples choose how many kids they want and when they should have them. | 22 | |
| 7247834905 | Food Security | All people in a population have daily access to food. | 23 | |
| 7247836955 | Food Insecurity | Living with chronic hunger or poor nutrition. | 24 | |
| 7247842194 | Urbanization | Creation and growth of urban areas. | 25 | |
| 7247843050 | Urban Growth | Rate of increase of urban populations. | 26 | |
| 7247844151 | Urban Sprawl | Growth of low density development on edges of cities and towns. | 27 | |
| 7289729376 | Demography | The study of people and populations. | 28 | |
| 7289740418 | Green Revolution | The increase in agricultural productivity due to improvements in farming technology. | 29 | |
| 7289758341 | Density Dependent Factors | Factors that vary depending on the amount of people in the area. | 30 | |
| 7289768815 | Density Independent Factors | Factors that have no connection to the amount of people in the area. | 31 | |
| 7289776316 | Doubling Time | 70/ birth rate | 32 | |
| 7308474646 | Survivorship | The percentage of a population reaching a given age or the proportion of the maximum life span of the species reached by any individual. | 33 | |
| 7308481521 | Biotic Potential | The maximum capacity of an individual or population to reproduce under optimal environmental conditions. | 34 | |
| 7308492356 | Competitors | Take care of their young, gather more resources, live longer. | 35 | |
| 7308496761 | R- species | Lay lots of eggs--> not many survive. | 36 | |
| 7308498536 | K-species | Lay few eggs--> higher survival rate. | 37 | |
| 7308515533 | Population Momentum | The tendency for population to grow despite a fall in birth rate or fertility levels. | 38 | |
| 7308524797 | Intrinsic Rate of Increase | The rate a population would grow with unlimited resources | 39 | |
| 7308534662 | Exponential Growth | J-Shaped curve-- a constant rate per time period. | 40 | |
| 7308535922 | J Curve | Exponential growth. | 41 | |
| 7308542017 | Logistic Growth | Exponential growth with small population, steady decrease in growth rate as population encounter environmental resistance and approaches carrying capacity. | 42 | |
| 7308545812 | Population Overshoot | Populations of some species temporarily exceed the carrying capacity. | 43 | |
| 7308547084 | Surplus | Having an excess of something. | 44 | |
| 7308553080 | Baby Boom | 1945-1965: following WW2, veterans came home and wanted to start families and they all had mass babies at the same time. | 45 | |
| 7308568758 | Baby Bust | 1965-1975: another decline in birth rates because the babies from the baby boom weren't old enough to have kids yet. | 46 | |
| 7308574736 | Immigration | The movement of people into an area. | 47 | |
| 7308580306 | Emigration | The movement of people out of an area. | 48 | |
| 7308591641 | Net Migration | The difference between immigration and emigration in a given year per 1,000 people in a country. | 49 | |
| 7308597366 | Population Explosion | The sudden growth of a population. | 50 | |
| 7308600293 | Population Growth Curve |  | 51 | |
| 7308607930 | S Curve | The population is exponential, then wavy at the top as it stabilizes. | 52 | |
| 7308614598 | Ecological Footprint | The impact of human activities measured in terms of the area of biologically productive land and water required to produce the goods consumed and to assimilate the wastes generated. | 53 | |
| 7308619455 | Natural Capital Degradation | The degradation of natural resources. | 54 | |
| 7308625021 | Pre-Reproductive Age | 1-14 | 55 | |
| 7308626147 | Reproductive Age | 15-45 | 56 | |
| 7308627213 | Post-Reproductive Age | 45+ | 57 | |
| 7308657531 | Pre-Industrial Stage | The first stage of the demographic transition model, characterized by conditions that defined most of human history. | 58 | |
| 7308661410 | Transitional Stage | The first stage of the demographic transition model, characterized by conditions that defined most of human history. | 59 | |
| 7308665698 | Industrial Stage | The third stage of the demographic, characterized by falling birth rates and closed the gap of falling death rates, reduced population growth. | 60 | |
| 7308669742 | Post-Industrial Stage | Fourth and final stage of demographic, both birth and death rates have fallen and remained stable, population may even decline slightly. | 61 | |
| 7308683228 | Gross National Product | Gross national product is the value of all goods and services produced by a country in one year from all national and international business; per capita means divided by population. | 62 | |
| 7308719339 | Environmental Impact | Possible adverse effects caused by a development, industrial, or infrastructural project or by the release of a substance in the environment. | 63 |
