Population and Community Ecology Review

Front

What is population density?

Back

The number of individuals per unit area.

Front

What is emigration?

Back

The process of individuals moving out of a population.

Front

What describes the relationship between two species that compete for the same resources?

Back

Competition.

Front

What factors decrease the size of a population?

Back

Emigration and deaths.

Front

What is a predator-prey relationship?

Back

A feeding relationship where one organism hunts and one is hunted.

Front

What are density-dependent factors?

Back

Factors that affect population size based on the population's density, such as competition and disease.

Front

What are density-independent factors?

Back

Factors that affect population size regardless of the population's density, such as natural disasters.

Front

What is immigration?

Back

The process of individuals moving into a population.

Front

What is the difference between immigration and emigration?

Back

Immigration refers to individuals moving into a population, while emigration refers to individuals moving out.

Front

What is mutualism?

Back

A symbiotic relationship where both species benefit.