Ch 4 Test Flashcards
As a population gets larger, it also grows faster. Creates a population explosion.
Exponential growth
The number of organisms of one species that an environment can support
Carrying capacity
The proportions of a population that are at different levels
Age structure
The study of human population growth characteristics
Demography
Movement from a population
Emigration
Movement of individuals to a population
Immigration
Factors such as disease, parasites, or food supply that has an increasing effect as populations increase. Depends on population.
Density dependent factors
Factors such as temperature, storms, floods, drought, or habitat disruption that affects all populations, regardless of their density. Abiotic and not affected by population.
Density independent factors
Linear graphs mean the growth is ____________.
Steady
Limiting factors, availability of food and space can created an __________ curve.
S shaped