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
| word | definition |
|---|---|
| exponential growth | as a population gets larger, it also grows at a faster rate |
| carrying capacity | the number of organisms that an environment can support indefinitely |
| life-history pattern | factor that determines population growth- an organisms reproductive pattern |
| density-dependent factors | include disease, competition, predators, parasites and food. these factors have an increasing effect as populations increase |
| density-independent factors | can effect populations regardless of their density. factors are abiotic factors such as volcanic eruptions, termperature, storms, floods, drought, chemical pesticides and major habitat disruption |
| demography | the study of human population size, density and distribution, movement, and its birth and death rates |
| birthrate | number of live birthsper 1000 population in a given year |
| death rate | number of deaths per 1000 population in a given year |
| double timing | time needed for a population to double in size |
| age structure | proportions of population that are in different age structures |
Created by:
bio123
Popular Biology sets