Name: 
 

Unit B Chapter 5 Lesson 1


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

 1. 
The living parts of an ecosystem are called
a.
biotic factors.
b.
animals.
c.
abiotic factors.
d.
organisms.
 

 2. 
All the populations of living organisms in an area make up a(n)
a.
community.
b.
niche.
c.
ecosystem.
d.
habitat.
 

 3. 
A nonliving factor in an ecosystem is called a(n)
a.
abiotic factor.
b.
biotic factor.
c.
lithosphere.
d.
habitat.
 

 4. 
All of the living and nonliving things in an area that interact with each other describes a(n)
a.
habitat.
b.
community.
c.
niche.
d.
ecosystem.
 

 5. 
The role of an organism in its community is its
a.
biotic factor.
b.
habitat.
c.
contribution.
d.
niche.
 

 6. 
All of the organisms of one species that live in an area at the same time is a(n)
a.
community.
b.
family.
c.
niche.
d.
population.
 

 7. 
The area where an organism lives is its
a.
pad.
b.
habitat.
c.
nesting ground.
d.
territory.
 

 8. 
The study of how living things and their environment interact is
a.
demography.
b.
ecology.
c.
zoology.
d.
geography.
 

 9. 
A new shopping center has been built, covering the soil habitat of worms.  The parking lot is a(n) ____ in the worm’s environment.
a.
abiotic factor
b.
biotic factor
c.
habitat
d.
ecosystem
 

 10. 
In the ground underneath a tree, the worms are a(n)
a.
abiotic factor.
b.
biotic factor.
c.
ecosystem.
d.
niche.
 

 11. 
One way that organisms survive a change to their habitat is to
a.
develop new body parts.
b.
move to a new habitat.
c.
stop reproducing.
d.
stop using energy and other resources.
 

 12. 
Chopping down trees might affect birds by
a.
reducing competition for food.
b.
adding new food sources.
c.
taking away their food source.
d.
adding more places to nest.
 



 
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