Unit 3 Populations Review

Front

Organisms that have inherited traits that give them an advantage in their natural environment are said to be...

Back

adapted to that environment.

Front

What type of distribution pattern is shown by birds that are evenly spaced apart?

Back

uniform (even) distribution.

Front

What happens if a population's emigration is greater than its immigration?

Back

The population will decrease in size.

Front

What is the term for a symbiotic relationship in which both organisms benefit?

Back

mutualism.

Front

What can cause a population to decline?

Back

The birthrate stays the same, and the death rate increases.

Front

What is the term for the number of individuals per unit area in a population?

Back

population density.

Front

What is the term for the maximum population size that an environment can sustain?

Back

carrying capacity.

Front

What is the relationship called when one organism benefits while the other is harmed?

Back

parasitism.

Front

What is the term for the movement of individuals into a population?

Back

immigration.

Front

What is the term for the movement of individuals out of a population?

Back

emigration.