Name: 
 

Chapter 53



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

 1. 

The presence of all of the following tend to increase species diversity except
a.
competitive exclusion.
b.
keystone predators.
c.
patchy environments.
d.
moderate disturbances.
e.
migration of populations.
 

 2. 

Which of the following is an example of cryptic coloration?
a.
bands on a coral snake
b.
brown color of tree bark
c.
markings of a viceroy butterfly
d.
colors of an insect-pollinated flower
e.
a "walking stick" insect that resembles a twig
 

 3. 

Which of the following is an example of Batesian mimicry?
a.
an insect that resembles a twig
b.
a butterfly that resembles a leaf
c.
a nonvenomous snake that looks like a venomous snake
d.
a fawn with fur coloring that camouflages it in the forest environment
e.
a snapping turtle that uses its tongue to mimic a worm, thus attracting fish
 

 4. 

Dwarf mistletoes are flowering plants that grow on certain forest trees. They obtain nutrients and water from the vascular tissues of the trees. The trees derive no known benefits from the dwarf mistletoes. Which of the following best describes the interactions between dwarf mistletoes and trees?
a.
mutualism
b.
parasitism
c.
commensalism
d.
facilitation
e.
competition
 

 5. 

Which of the following terms best describes the interaction between termites and the protozoans that feed in their gut?
a.
commensalism
b.
mutualism
c.
competitive exclusion
d.
ectoparasitism
e.
endoparasitism
 

 6. 

To measure species diversity in a community, you need to know
a.
the number of species.
b.
the relative abundance of each species.
c.
the physical size of each species.
d.
both A and B
e.
A, B, and C
 

 7. 

With a few exceptions, most of the food chains studied by ecologists have a maximum of how many links?
a.
2
b.
3
c.
5
d.
10
e.
15
 

 8. 

In a tide pool, 15 species of invertebrates were reduced to eight after one species was removed. The species removed was likely a(n)
a.
community facilitator.
b.
keystone species.
c.
herbivore.
d.
resource partitioner.
e.
mutualistic organism.
 

 9. 

Which of the following statements about the Yellowstone National Park fires of 1988 is false?
a.
Secondary succession followed the fires.
b.
The dominant lodgepole pines required fire to complete their normal life history.
c.
Human environmental policy increased the severity of the fires.
d.
It took years before new vegetation returned to the area.
e.
Severe drought helped to trigger the fires.
 
 
Refer to the list of terms below to answer the following questions. Each term may be used once, more than once, or not at all.

A.
parasitism
B.
mutualism
C.
inhibition
D.
facilitation
E.
commensalism
 

 10. 

the relationship between legumes and nitrogen-fixing bacteria
a.
A
b.
B
c.
C
d.
D
e.
E
 

 11. 

successional event in which one organism makes the environment more suitable for another organism
a.
A
b.
B
c.
C
d.
D
e.
E
 
 
Refer to the diagram below of five islands formed at about the same time near a particular mainland to answer the following questions.

chpt53_files/i0140000.jpg
 

 12. 

island with the least number of species
a.
A
b.
B
c.
C
d.
D
e.
E
 

 13. 

Which of the following statements is most consistent with F.E. Clements' integrated hypothesis?
a.
Species are distributed independently of other species.
b.
Communities lack discrete geographic boundaries.
c.
The community functions as an interactive unit.
d.
The composition of plant species seems to change on a continuum.
e.
The community is a chance assemblage of species.
 



 
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