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Bio 12E: Investigate and explain the interactions in an ecosystem (Ch. 17 - HOL

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

 1. 
The process by which species evolve in response to other living members of their ecosystem is called
a.
compromise.
c.
coevolution.
b.
parasitism.
d.
ecology.
 

 2. 
The caterpillars of cabbage butterflies are the only insects that can eat plants of the mustard family because they
a.
eat these plants only when young and tender.
b.
have evolved the ability to break down mustard oils into harmless chemicals.
c.
are parasites while in this stage of development.
d.
All of the above
 
 
The diagrams below show different kinds of interactions between species.
bio12e_intervention_files/i0040000.jpg
 

 3. 
Refer to the illustration above. The relationship shown in diagram 1 is
a.
commensalism.
c.
mutualism.
b.
competition.
d.
parasitism.
 

 4. 
Parasites
a.
coevolve with their hosts.
c.
rarely kill their hosts.
b.
are usually smaller than their hosts.
d.
All of the above
 

 5. 
Characteristics that enable plants to protect themselves from herbivores include
a.
thorns and prickles.
c.
chemical defenses.
b.
sticky hairs and tough leaves.
d.
All of the above
 

 6. 
The relationship between plants and the bees that pollinate them is an example of
a.
commensalism.
c.
mutualism.
b.
competition.
d.
parasitism.
 

 7. 
The relationship between a whale and barnacles growing on its skin is an example of
a.
commensalism.
c.
mutualism.
b.
competition.
d.
parasitism.
 
 
bio12e_intervention_files/i0100000.jpg
 

 8. 
Refer to the table above. The table represents three types of
a.
competition.
c.
symbiosis.
b.
rhythmic patterns.
d.
secondary succession.
 

 9. 
Refer to the table above. The relationship that corresponds to description 2 is known as
a.
parasitism.
c.
mutualism.
b.
commensalism.
d.
predation.
 

 10. 
commensalism : one organism ::
a.
parasitism : both organisms
c.
competition : both organisms
b.
predation : neither organism
d.
mutualism : both organisms
 

 11. 
An organism’s niche includes
a.
what it eats.
c.
when it eats.
b.
where it eats.
d.
All of the above
 

 12. 
Most ecosystems tend to be complex because
a.
they are found in all climates.
b.
potential competitors in the ecosystem often occupy slightly different niches.
c.
they all contain a wide variety of producers.
d.
of symbiotic relationships within them.
 
 
bio12e_intervention_files/i0160000.jpg
 

 13. 
Refer to the illustration above. Because the two species of barnacles attempt to use the same resources, they are
a.
parasitic.
c.
mutualistic.
b.
in competition with each other.
d.
symbiotic.
 

 14. 
Refer to the illustration above. Diagram A indicates that the barnacle Chthamalus stellatus can live in both shallow and deep water on a rocky coast. This is the barnacle’s
a.
competitive niche.
c.
fundamental niche.
b.
realized niche.
d.
exclusive niche.
 

 15. 
Refer to the illustration above. Diagram C indicates that when the two barnacles live together, Chthamalus is restricted to shallow water. Shallow water is the barnacle’s
a.
competitive niche.
c.
fundamental niche.
b.
realized niche.
d.
exclusive niche.
 

 16. 
When two species compete, the niche that each species ultimately occupies is its
a.
competitive niche.
c.
fundamental niche.
b.
realized niche.
d.
exclusive niche.
 

 17. 
If the niches of two organisms overlap,
a.
the organisms may have to compete directly.
b.
the two organisms will always form a symbiotic relationship.
c.
both organisms will disappear from the habitat.
d.
one organism usually migrates to a new habitat.
 

 18. 
Major ecosystems that occur over wide areas of land are called
a.
communities.
c.
biomes.
b.
habitats.
d.
food chains.
 
 
bio12e_intervention_files/i0230000.jpg
 

 19. 
Refer to the illustration above. An ecosystem located along latitude A would
a.
have a shorter growing season than an ecosystem on latitude B.
b.
probably contain fewer species than an ecosystem at latitude B.
c.
probably be more diverse than an ecosystem at latitude B.
d.
probably have less rainfall than an ecosystem at latitude B.
 

 20. 
Generally, the closer an ecosystem is to the equator,
a.
the longer its growing season.
c.
the warmer its temperature.
b.
the greater its diversity.
d.
All of the above
 

 21. 
Tropical ecosystems are more diverse than temperate zone ecosystems because
a.
the growing season in tropical ecosystems never stops.
b.
the climate in tropical ecosystems does not vary much from year to year.
c.
a greater amount of food is produced in tropical ecosystems.
d.
All of the above
 

 22. 
Plankton are
a.
a major formation ingredient of most fossil fuels.
b.
found in the deep-water zone of most lakes and ocean.
c.
the base of most aquatic food webs.
d.
usually in the third and fourth trophic levels of ocean ecosystems.
 

 23. 
Organisms with light-producing body parts would most likely be found in
a.
the deep-water zone of lakes.
c.
open ocean surfaces.
b.
shallow ocean waters.
d.
deep ocean waters.
 

 24. 
The greatest diversity of life in the ocean is found in
a.
shallow ocean waters.
c.
deep ocean waters.
b.
the ocean surface.
d.
tidal areas.
 

 25. 
Almost all of the Earth’s surface water is contained in
a.
ocean ecosystems.
c.
tropical rain forests.
b.
freshwater biomes.
d.
ponds and lakes.
 



 
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