Ch 4 Test Review

Front

What is the term for the largest number of individuals that an environment can support long term?

Back

Carrying capacity.

Front

What does the age structure of a population represent?

Back

The percentages of individuals found at different age levels in the population.

Front

What are density-dependent factors?

Back

Factors that affect population size in relation to the population's density, such as disease.

Front

What are density-independent factors?

Back

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

Front

True or False: Limiting factors can help keep a population from getting too large.

Back

True.

Front

What is a survivorship curve?

Back

A graph that represents the number of individuals surviving at each age for a given species.

Front

What is emigration?

Back

The act of leaving one's resident population to settle in another.

Front

What is immigration?

Back

The act of coming into a new population from another.

Front

What is population density?

Back

The number of individuals per unit area or volume.

Front

What is a population?

Back

A group of individuals of the same species living in a specific area.