Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Chapter 4 Terms
APES Chapter 4 Terms
| Question | Answer |
|---|---|
| A population divided into groups by age. Sometimes the groups represent the actual number of each age in the population; sometimes the groups represent the percentage or proportion of the population of each age. | age structure |
| The rate at which births occur in a population, measured either as the number of individuals born per unit of time or as the percentage of births per unit of time compared with the total population. | birth rate |
| The rate at which deaths occur in a population, measured either as the number of individuals dying per unit time or as the percentage of a population dying per unit time. | death rate |
| The pattern of change in birth and death rates as a country is transformed from undeveloped to developed. Three stages occur. | demographic transition |
| In an undeveloped country, birth and death rates are high and the growth rate is low. | First stage of demographic transition |
| The death rate decreases, but the birth rate remains high and the growth rate is high. | Second stage of demographic transition |
| The birth rate drops toward the death rate and the growth rate therefore also decreases. | Third stage of demographic transition |
| The net increase in some factor per unit time. In ecology, the growth rate of a population, sometimes measured as the increase in numbers of individuals or biomass per unit of time and sometimes as a percentage increase in numbers or biomass per unit time | Growth rate |
| Theoretical estimates of the number of humans who could inhabit Earth at the same time. | Human carrying capacity |
| The estimated average number of years (or other time period used as a measure) that an individual of a specific age can expect to live. | Life expectancy |
| In terms of the logistic curve, the population size at which births equal deaths and there is no net change in the population. | Logistic carrying capacity |
| The S-shaped growth curve that is generated by the logistic growth equation. In the logistic, a small population grows rapidly, but the growth rate slows down, and the population eventually reaches a constant size. | Logistic growth curve |
| Genetically determined maximum possible age to which an individual of a species can live. | Maximum lifetime |
| A group of individuals of the same species living in the same area or interbreeding and sharing genetic information. | Population |
| The causes of changes in population size. | Population dynamics |
| A group of individuals capable of interbreeding | Species |
| The result when the number of births equals the number of deaths so that there is no net change in the size of the population. | Zero population growth |
Created by:
MrsLigon
Popular Science sets