Question 1

Which of the following statements about plant-frugivore mutualisms is true?

Accepted Answer

A)   These mutualisms are usually symmetrical.
B)   Most frugivores are specialists.
C)   Plants time the ripening of their fruits to coincide with the maturation of their seeds.
D)   Both a and b
E)   None of the above

Question 2

The relationship between mistletoes and mistletoe birds is one in which food is traded for

Accepted Answer

A)   whole plant transport.
B)   defense.
C)   pollen transport.
D)   seed transport.
E)   None of the above

Question 3

If two organisms use the same resources and those resources are insufficient to supply their combined needs, the organisms' interactions constitute

Accepted Answer

A)   amensalism.
B)   mutualism.
C)   commensalism.
D)   predator-prey.
E)   competition.

Question 4

In Eurasia, two closely related species of rock nuthatches (small birds that forage for insects and spiders on bare, rocky ground)  occur either separately, or in zones of sympatry. Individuals of both species that exist in the former situation, with no interspecies competition, have bills that are similar in length. But in their zone of sympatry in Iran, one species has a longer bill than it has elsewhere and the other species has a shorter bill. This is an example of _______ competition that has resulted in _______.

Accepted Answer

A)   exploitation; resource partitioning
B)   exploitation; character displacement
C)   interference; resource partitioning
D)   interference; character displacement
E)   None of the above

Question 5

The most likely pollinator of the scarlet monkeyflower Mimulus cardinalis, which has bright red, tubular flowers and produces nectar, would be

Accepted Answer

A)   moths.
B)   butterflies.
C)   hummingbirds.
D)   bees.
E)   flesh flies.

Question 6

Which of the following is most likely to evolve specialized detoxification systems?

Accepted Answer

A)   A mammalian herbivore that eats a variety of plant species
B)   An avian predator
C)   An insect whose larvae feed from the leaves from a single host plant
D)   A bumblebee that obtains nectar while pollinating flowers
E)   A tick that lives as an ectoparasite

Question 7

Although a species might be physiologically able to live under a wide range of resource conditions, competitors may restrict its use of resources in a particular location. This is known as

Accepted Answer

A)   mutualism.
B)   interference competition.
C)   fundamental niche.
D)   realized niche.
E)   character displacement.

Question 8

Which of the following statements about the niche concept is false?

Accepted Answer

A)   Compared to species with dissimilar niches, species with similar niches are likely to be stronger competitors with one another.
B)   Two species can occupy the same habitat but have different niches.
C)   Guilds are groups of species that occupy the same niche.
D)   The realized niche of a species is never larger than its fundamental niche, though they may be identical in size.
E)   All of the above are true.

Question 9

Which of the following statements about competition is true?

Accepted Answer

A)   Consumers can influence the outcome of their prey species' competitive interactions.
B)   Competition requires the competitors to be physically present in the same region at the same time.
C)   Exploitation competition cannot lead to coexistence.
D)   Both a and b
E)   None of the above

Question 10

Another term for coevolution is

Accepted Answer

A)   amensalism.
B)   commensalism.
C)   aposematism.
D)   reciprocal adaptation.
E)   character displacement.

Question 11

A hummingbird sips nectar from the flowers of a plant species and, in the process, pollinates those flowers. This interaction is best classified as

Accepted Answer

A)   parasitism, because the hummingbird consumes the flower's nectar.
B)   predation, because the hummingbird eats the plant's seeds.
C)   commensalism, because the hummingbird benefits from consuming nectar and the plant is unaffected.
D)   mutualistic, because the plant provides nectar for the hummingbird and the hummingbird transports pollen for the plant.
E)   Not enough information is provided to classify this interaction.

Question 12

In many pollination systems, nectar serves as a(n) _______, luring the pollinator to visit the flower.

Accepted Answer

attractant...

Question 13

Predation is the type of interaction in which

Accepted Answer

A)   one participant benefits and the other is unaffected.
B)   two organisms use the same limited resources.
C)   one participant is harmed while the other benefits.
D)   one participant is harmed but the other is unaffected.
E)   both participants benefit.

Question 14

Suppose the fecal matter from dogs helps fertilize a particular species of plant, thus increasing the plant's ability to grow in a particular area. The relationship between the dogs and the plants would be described as

Accepted Answer

A)   mutualism.
B)   amensalism.
C)   herbivory.
D)   antagonistic.
E)   commensalism.

Question 15

Which of the following is a possible outcome of competition involving two species?

Accepted Answer

A)   Some individuals of both species experience reduced growth and reproductive rates.
B)   One species excludes the other from a habitat it would occupy in the absence of competition.
C)   One species restricts the geographic range of the other species.
D)   The species evolve to divide up the limiting resource and continue to coexist in the same locality.
E)   All of the above

Question 16

In a coevolutionary arms race, after a plant evolves a novel chemical defense against an herbivore,

Accepted Answer

A)   the herbivore can be expected to go extinct.
B)   the herbivore can be expected to disperse to new habitats.
C)   the herbivore can be expected to evolve resistance to the plant's defense.
D)   the plant can be expected to colonize new habitats.
E)   the plant can be expected to outcompete all other plants in the same environment.

Question 17

The relationship between a zebra and the lion that eats it is an example of what kind of relationship?

Accepted Answer

A)   Competition
B)   Mutualism
C)   Antagonistic
D)   Commensalism
E)   Amensalism

Question 18

Leaf-cutter ants that tend fungal gardens protect themselves from mold by means of

Accepted Answer

A)   their feces.
B)   the fungi.
C)   bacteria.
D)   a smaller ant species.
E)   None of the above

Question 19

_______ interactions benefit a consumer while harming the species that is consumed.

Accepted Answer

A)   Mutualistic
B)   Antagonistic
C)   Agonistic
D)   Both a and c
E)   None of the above

Question 20

Taxonomically, most of the world's herbivores are _______.

Accepted Answer

The answer of Taxonomically, most of the world's herbivores are...

Exam 56: Species Interaction and Coevolution

Correct Answer
verified

A hummingbird sips nectar from the flowers of a plant species and, in the process, pollinates those flowers. This interaction is best classified as

Correct Answer
verified

In many pollination systems, nectar serves as a(n) _______, luring the pollinator to visit the flower.

Correct Answer
verified
attractant...
View Answer

Leaf-cutter ants that tend fungal gardens protect themselves from mold by means of

Correct Answer
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Which of the following statements about competition is true?

Correct Answer
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Another term for coevolution is

Correct Answer
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Although a species might be physiologically able to live under a wide range of resource conditions, competitors may restrict its use of resources in a particular location. This is known as

Correct Answer
verified

Which of the following is most likely to evolve specialized detoxification systems?

Correct Answer
verified

The relationship between a zebra and the lion that eats it is an example of what kind of relationship?

Correct Answer
verified

Predation is the type of interaction in which

Correct Answer
verified

Which of the following statements about plant-frugivore mutualisms is true?

Correct Answer
verified

Suppose the fecal matter from dogs helps fertilize a particular species of plant, thus increasing the plant's ability to grow in a particular area. The relationship between the dogs and the plants would be described as

Correct Answer
verified

The relationship between mistletoes and mistletoe birds is one in which food is traded for

Correct Answer
verified

If two organisms use the same resources and those resources are insufficient to supply their combined needs, the organisms' interactions constitute

Correct Answer
verified

The most likely pollinator of the scarlet monkeyflower Mimulus cardinalis, which has bright red, tubular flowers and produces nectar, would be

Correct Answer
verified

Which of the following is a possible outcome of competition involving two species?

Correct Answer
verified

In a coevolutionary arms race, after a plant evolves a novel chemical defense against an herbivore,

Correct Answer
verified

Which of the following statements about the niche concept is false?

Correct Answer
verified

_______ interactions benefit a consumer while harming the species that is consumed.

Correct Answer
verified

Taxonomically, most of the world's herbivores are _______.

Correct Answer
verified

Exam 56: Species Interaction and Coevolution

Correct AnswerverifiedShow Answer

A hummingbird sips nectar from the flowers of a plant species and, in the process, pollinates those flowers. This interaction is best classified as

Correct AnswerverifiedShow Answer

In many pollination systems, nectar serves as a(n) _______, luring the pollinator to visit the flower.

Correct Answerverifiedattractant...View AnswerShow Answer

Leaf-cutter ants that tend fungal gardens protect themselves from mold by means of

Correct AnswerverifiedShow Answer

Which of the following statements about competition is true?

Correct AnswerverifiedShow Answer

Another term for coevolution is

Correct AnswerverifiedShow Answer

Although a species might be physiologically able to live under a wide range of resource conditions, competitors may restrict its use of resources in a particular location. This is known as

Correct AnswerverifiedShow Answer

Which of the following is most likely to evolve specialized detoxification systems?

Correct AnswerverifiedShow Answer

The relationship between a zebra and the lion that eats it is an example of what kind of relationship?

Correct AnswerverifiedShow Answer

Predation is the type of interaction in which

Correct AnswerverifiedShow Answer

Which of the following statements about plant-frugivore mutualisms is true?

Correct AnswerverifiedShow Answer

Suppose the fecal matter from dogs helps fertilize a particular species of plant, thus increasing the plant's ability to grow in a particular area. The relationship between the dogs and the plants would be described as

Correct AnswerverifiedShow Answer

The relationship between mistletoes and mistletoe birds is one in which food is traded for

Correct AnswerverifiedShow Answer

If two organisms use the same resources and those resources are insufficient to supply their combined needs, the organisms' interactions constitute

Correct AnswerverifiedShow Answer

The most likely pollinator of the scarlet monkeyflower Mimulus cardinalis, which has bright red, tubular flowers and produces nectar, would be

Correct AnswerverifiedShow Answer

Which of the following is a possible outcome of competition involving two species?

Correct AnswerverifiedShow Answer

In a coevolutionary arms race, after a plant evolves a novel chemical defense against an herbivore,

Correct AnswerverifiedShow Answer

Which of the following statements about the niche concept is false?

Correct AnswerverifiedShow Answer

_______ interactions benefit a consumer while harming the species that is consumed.

Correct AnswerverifiedShow Answer

Taxonomically, most of the world's herbivores are _______.

Correct AnswerverifiedShow Answer

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attractant...
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