Question 1

Parasites impact host populations by

Accepted Answer

A)  draining nutrients from hosts.
B)  making hosts more vulnerable to predation.
C)  lowering birth rates and raising death rates.
D)  causing sterility
E)  all of these.F) B) and D)
G) C) and E)

Question 2

Which of the following are parasites?

Accepted Answer

A)  some pathogensi
B)  a few birds
C)  a few plants
D)  some flatworms and roundworms
E)  all of theseF) A) and E)
G) A) and D)

Question 3

The weakest symbiotic association, in which one species simply lives better in the presence of another species is

Accepted Answer

A)  commensalism.
B)  competitive exclusion.
C)  mutualism.
D)  facultative obligate mutualism.
E)  parasitism.F) B) and D)
G) C) and D)

Question 4

Niche refers to the

Accepted Answer

A)  home range of an animal.
B)  preferred habitat for an organism.
C)  functional role of a species in a community.
D)  territory occupied by a species.
E)  feeding levels of a species.F) A) and E)
G) C) and D)

Question 5

The reason why twelve species of fruit-eating pigeons can survive in Papua New Guinea's tropical rain forests is related to

Accepted Answer

A)  mutualistic associations.
B)  commensalism.
C)  resource partitioning.
D)  mutualistic associations and resource partitioning
E)  mutualistic associations, commensalism, and resource partitioning.F) B) and E)
G) A) and E)

Question 6

What conclusion can be drawn from research on abundance cycles of Canadian lynx and snowshoe hare?

Accepted Answer

A)  A simple predator-prey model explains the results.
B)  A simple plant-herbivore model explains the results.
C)  Raptor activity has no effect on the outcome.
D)  Complex variables are involved.
E)  Manipulation of experimental plots stopped cyclic changes in population densities.F) None of the above
G) A) and B)

Question 7

The sting of imported fire ants can cause

Accepted Answer

A)  fluid filled pustules that are slow to heal.
B)  nausea.
C)  dizziness.
D)  death.
E)  all of these.F) A) and E)
G) D) and E)

Question 8

All of the populations of different species that occupy and are adapted to a given area are

Accepted Answer

A)  the biosphere.
B)  a community.
C)  an ecosystem.
D)  a niche.
E)  an ecotone.F) B) and C)
G) C) and D)

Question 9

Which bird is a social parasite and lays its eggs in the nests of other birds?

Accepted Answer

A)  catbird
B)  cowbird
C)  magpie
D)  Kirtland warbler
E)  blue jayF) A) and C)
G) B) and D)

Question 10

Gause's exclusion principle refers to

Accepted Answer

A)  isolation.
B)  competition. 
C)  habitat preference.
D)  physiological adaptation.
E)  niche removal.F) C) and D)
G) C) and E)

Question 11

The animal in the above figure is using __________ for protection.

Accepted Answer

A)  mimicry
B)  display behavior
C)  warning coloration
D)  chemical defenses
E)  camouflageF) A) and B)
G) B) and E)

Question 12

Which one of the following is the final consequence of one or more of the others?

Accepted Answer

A)  resource partitioning
B)  competition
C)  predation
D)  parasitism
E)  parasitoidismF) A) and E)
G) B) and E)

Exam 46: Community Structure and Biodiversity

What conclusion can be drawn from research on abundance cycles of Canadian lynx and snowshoe hare?

Correct Answer
verified

Parasites impact host populations by

Correct Answer
verified

Niche refers to the

Correct Answer
verified

The weakest symbiotic association, in which one species simply lives better in the presence of another species is

Correct Answer
verified

The reason why twelve species of fruit-eating pigeons can survive in Papua New Guinea's tropical rain forests is related to

Correct Answer
verified

All of the populations of different species that occupy and are adapted to a given area are

Correct Answer
verified

The sting of imported fire ants can cause

Correct Answer
verified

Which of the following are parasites?

Correct Answer
verified

Which one of the following is the final consequence of one or more of the others?

Correct Answer
verified

The animal in the above figure is using __________ for protection.

Correct Answer
verified

Gause's exclusion principle refers to

Correct Answer
verified

Which bird is a social parasite and lays its eggs in the nests of other birds?

Correct Answer
verified

Exam 46: Community Structure and Biodiversity

What conclusion can be drawn from research on abundance cycles of Canadian lynx and snowshoe hare?

Correct AnswerverifiedShow Answer

Parasites impact host populations by

Correct AnswerverifiedShow Answer

Niche refers to the

Correct AnswerverifiedShow Answer

The weakest symbiotic association, in which one species simply lives better in the presence of another species is

Correct AnswerverifiedShow Answer

The reason why twelve species of fruit-eating pigeons can survive in Papua New Guinea's tropical rain forests is related to

Correct AnswerverifiedShow Answer

All of the populations of different species that occupy and are adapted to a given area are

Correct AnswerverifiedShow Answer

The sting of imported fire ants can cause

Correct AnswerverifiedShow Answer

Which of the following are parasites?

Correct AnswerverifiedShow Answer

Which one of the following is the final consequence of one or more of the others?

Correct AnswerverifiedShow Answer

The animal in the above figure is using __________ for protection.

Correct AnswerverifiedShow Answer

Gause's exclusion principle refers to

Correct AnswerverifiedShow Answer

Which bird is a social parasite and lays its eggs in the nests of other birds?

Correct AnswerverifiedShow Answer

Correct Answer
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