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Population Ecology Quiz

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 

Which of the following is NOT one of the four factors that play a role in growth rate?
a.
immigration
b.
death rate
c.
emigration
d.
demography
 

 2. 

When organisms move out of the population they were born in, it is known as
a.
emigration.
b.
abandonment.
c.
immigration.
d.
succession.
 

 3. 

Which are two ways a population can decrease in size?
a.
immigration and emigration
b.
increased death rate and immigration
c.
decreased birthrate and emigration
d.
emigration and increased birthrate
 

 4. 

Which factor might NOT contribute to an exponential growth rate in a given population?
a.
lower death rates
b.
higher birthrates
c.
less competition
d.
reduced resources
 

 5. 

A biotic or an abiotic resource in the environment that limits the size of a population is a
a.
carrying capacity.
b.
limiting nutrient.
c.
limiting factor.
d.
growth factor.
 

 6. 

The number of organisms that an environment can support over a relatively long period of time is called
a.
carrying capacity.
b.
logistic growth.
c.
exponential growth.
d.
limiting factor.
 

 7. 

Which will reduce competition within a species’ population?
a.
fewer individuals
b.
higher birthrate
c.
fewer resources
d.
higher density
 

 8. 

Water lilies do not grow in desert sand because water availability to these plants in a desert is
a.
a limiting factor.
b.
the carrying capacity.
c.
a competition factor.
d.
parasitism.
 

 9. 

A disease resulting in the deaths of one-third of a dense population of bats in a cave would be a
a.
density-dependent limiting factor.
b.
result of the demographic transition.
c.
density-independent limiting factor.
d.
result of social and economic factors.
 

 10. 

In Rwanda, there are more young children than teenagers, and more teenagers than adults. This age structure indicates a population that
a.
has stopped growing.
b.
will double in 30 years.
c.
has a steady growth rate.
d.
will decrease in 30 years.
 



 
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