Flashcards in science: chpt. 4 big quiz Deck (10):
0
When birthrate equals death rate
Zero population growth (ZPG)
1
The study of human population size, density, distribution, movement, and birth and death rates
Demography
2
The maximum number of individuals in a species that an environment can support
Carrying capacity
3
Use to describe the number of individuals moving away
Emigration
4
Use to describe the number of people coming into a population
Immigration
5
What are some density–independent factors?
Abiotic factors such as flooding, extreme heat or cold, tornadoes, hurricanes.
6
What are density–dependent factors?
Biotic factors such as predation, disease, parasites, and competition.
7
Number of organisms per unit area
Population density
8
The pattern of spacing in a population with in an area
Dispersion
9