14.4 Flash Cards

Front

Explain : the exponential growth model represents a situation that cannot be sustained in the real world.

Back

because No population can grow unchecked because the resources available are finite; they have a limit.

Front

What four factors determine the growth rate of a population?

Back

immigration, births, deaths, emigration

Front

How does carrying capacity affect the size of a population?

Back

Carrying capacity limits the size of a population.

Front

What is the main difference between

a density-dependent limiting

factor and a density-independent

limiting factor?

Back

A density-dependent limiting factor is

affected by the number of individuals in a

given area, but a density-independent

limiting factor is not affected by population

size.

Front

Give examples of density depending limiting factors

Back

Examples of density-dependent

limiting factors include predation, competition,

and disease.

Front

Give examples of density-independent

limiting factors

Back

Examples of density-independent

limiting factors include weather,

natural disasters, and human activities.

Front

Apply : What might cause

exponential growth to occur only

for a short period when a new

species is introduced to a resource filled

environment?

Back

Eventually, the growing population will

consume all available resources, and the

species may experience a population crash.