Question 1

Which of the following statements about mimicry are true? Check all that apply.

Accepted Answer

A)  Generally,the number of mimics in a Müllerian mimicry system must be less than the number of models
B)  Only Batesian mimicry depends on the ability of the predator to learn.
C)  In Müllerian mimicry,the participants are both mimics and models.
D)  In Batesian mimicry,the participants are either mimics or models.
E)  A Müllerian mimic is "a sheep in wolf's clothing."F) B) and C)
G) C) and E)

Question 2

In studies of two species of barnacles in the marine intertidal zone it was observed that Chthamalus can live in the upper intertidal zone and the lower intertidal zone if Semibalanus is absent,and Semibalanus can only live in the lower zone because it is more subject to dehydration.Based on this,which of the following statements are true? Check all that apply.

Accepted Answer

A)  The realized niches of the two species differ.
B)  The fundamental niche of Chthamalus is larger than its realized niche.
C)  The fundamental niche of Chthamalus is larger than the fundamental niche of Semibalanus.
D)  The fundamental and the realized niches of Chthamalus are the same.
E)  The fundamental and the realized niches of Semibalanus are the same.F) A) and E)
G) None of the above

Question 3

Two of Darwin's finches display a character displacement when they occur as sympatric species.Which of the statements correctly interprets the graph?

Accepted Answer

A)  Both species have the same size beak on Santa Maria Island.
B)  Both species have the same size beaks on Daphne Major.
C)  Both species have the same size beaks on Los Hermanos Island.
D)  The two species have different beak sizes when they occur on the same island.
E)  The two species feed on different food resources; one feeds on seeds while the other feeds on insects.F) A) and B)
G) A) and C)

Question 4

Based on the following graph,what is the most likely relationship between Paramecium and Didinium?

Accepted Answer

A)  Paramecium prey on Didinium.
B)  Paramecium have a commensal relationship with Didinium.
C)  Didinium and Paramecium have a mutualistic relationship.
D)  Didinium prey on Paramecium.
E)  Paramecium is a parasite that feeds on Didinium.F) None of the above
G) A) and E)

Question 5

Paleontological studies indicate that,over millions of years,

Accepted Answer

A)  groups of species that have coevolved rise and go extinct together.
B)  species that occurred together in the distant past still occur together today; the community has held constant.
C)  the extinction of species is not related to the community in which they lived.
D)  species seem to come and go individually as niches within a community become available.
E)  species richness is constant over time.F) A) and D)
G) D) and E)

Question 6

Chemicals that play the dominant role in protecting plants from being eaten by herbivores or predators are called

Accepted Answer

A)  primary compounds.
B)  secondary compounds.
C)  poisons.
D)  oils.
E)  amino acids.F) B) and C)
G) B) and E)

Question 7

Interspecific competition can affect the phenotypic characteristics of organisms.

Accepted Answer

A) True 
 B)False

Question 8

Following their respective breeding seasons,several species of hummingbirds occur at the same locations in North America and several hummingbird flowers bloom simultaneously in these habitats.These flowers seem to have converged to a common morphology and color.Birds have the most visual sensitivity to the color red.Following their breeding season,these species of hummingbirds are

Accepted Answer

A)  allopatric.
B)  sympatric.C) A) and B)
D) undefined

Question 9

Which of the following examples would be undergoing secondary succession? Check all that apply.

Accepted Answer

A)  an abandoned potato farm
B)  a coastal grassland damaged by a hurricane
C)  an abandoned landfill
D)  rocks in a national park covered by mosses and lichens
E)  a garden bed that has been weededF) B) and C)
G) C) and E)

Question 10

The difference in the fundamental niche and the realized niche is

Accepted Answer

A)  the fundamental niche is the actual niche that a species occupies while the realized niche is the potential area that the species is capable of inhabiting.
B)  the fundamental niche is the entire niche that a species is capable of using while the realized niche is just what is being occupied.
C)  the fundamental niche is smaller than the realized niche.
D)  the realized niche is theoretical while the fundamental niche is the entire niche that an organism can use.E) A) and B)
F) A) and C)

Question 11

A relationship in which both members benefit is called

Accepted Answer

A)  predation.
B)  parasitism.
C)  mutualism.
D)  commensalism.
E)  sympatric.F) B) and C)
G) A) and C)

Question 12

Succession happens because species in the habitat alter that habitat in ways that assist other species.There are three dynamic concepts that are of critical importance for succession to take place.They are

Accepted Answer

A)  establishment,facilitation,and inhibition.
B)  symbiotic relationships,facilitation,and aposematic coloration.
C)  establishment,coevolution,and competitive exclusion.
D)  competition,climax communities,and tolerance.
E)  competition,inhibition,and coevolution.F) A) and C)
G) B) and E)

Question 13

Which of the following is an example of commensalism?

Accepted Answer

A)  a tapeworm living in the intestines of a mule deer
B)  barnacles hitching a ride on the skin of a whale
C)  a female mosquito sucking blood from a musk oxen
D)  wood-digesting flagellates living in the gut of termites
E)  acacia trees and their antsF) A) and B)
G) None of the above

Question 14

Communities evolve to have greater biomass and species richness in a process called

Accepted Answer

A)  sympatric interactions.
B)  adaptive modifications.
C)  succession.
D)  symbiotic relationships.
E)  competitive exclusion.F) A) and D)
G) A) and C)

Question 15

Geographical allopatry between species is definitive evidence of interspecific competition.

Accepted Answer

A) True 
 B)False

Question 16

In ________ mimicry,two or more unrelated but protected species resemble one another,thus achieving a kind of group defense.

Accepted Answer

A)  Batesian
B)  disruptive
C)  Müllerian
D)  cooperativeE) A) and B)
F) A) and C)

Question 17

Alligators excavate holes in the bottom of bodies of water.During times of severe drought these holes act as refugia for various aquatic organisms that might perish if there were no water available.Thus,alligators in this system can be classified as a(n)

Accepted Answer

A)  keystone species.
B)  symbiotic species.
C)  sympatric species.
D)  allopatric species.
E)  refugistic species.F) C) and D)
G) A) and C)

Question 18

In ________ mimicry,unprotected species resemble others that are distasteful.

Accepted Answer

A)  Müllerian
B)  competitive
C)  Batesian
D)  aposematicE) A) and C)
F) C) and D)

Question 19

In general,communities in early succession will be dominated by fast-growing species with r-selected life histories.

Accepted Answer

A) True 
 B)False

Question 20

It is a situation in which a palatable organism resembles another kind of organism that is distasteful or toxic.

Accepted Answer

The answer of It is a situation in which a...

Exam 55: Community Ecology

In ________ mimicry,unprotected species resemble others that are distasteful.

Correct Answer
verified

Alligators excavate holes in the bottom of bodies of water.During times of severe drought these holes act as refugia for various aquatic organisms that might perish if there were no water available.Thus,alligators in this system can be classified as a(n)

Correct Answer
verified

Based on the following graph,what is the most likely relationship between Paramecium and Didinium?

Correct Answer
verified

Which of the following examples would be undergoing secondary succession? Check all that apply.

Correct Answer
verified

Geographical allopatry between species is definitive evidence of interspecific competition.

Correct Answer
verified

Chemicals that play the dominant role in protecting plants from being eaten by herbivores or predators are called

Correct Answer
verified

Two of Darwin's finches display a character displacement when they occur as sympatric species.Which of the statements correctly interprets the graph?

Correct Answer
verified

Correct Answer
verified

It is a situation in which a palatable organism resembles another kind of organism that is distasteful or toxic.

Correct Answer
verified

The difference in the fundamental niche and the realized niche is

Correct Answer
verified

In ________ mimicry,two or more unrelated but protected species resemble one another,thus achieving a kind of group defense.

Correct Answer
verified

A relationship in which both members benefit is called

Correct Answer
verified

Which of the following is an example of commensalism?

Correct Answer
verified

Which of the following statements about mimicry are true? Check all that apply.

Correct Answer
verified

Correct Answer
verified

In general,communities in early succession will be dominated by fast-growing species with r-selected life histories.

Correct Answer
verified

Communities evolve to have greater biomass and species richness in a process called

Correct Answer
verified

Paleontological studies indicate that,over millions of years,

Correct Answer
verified

Interspecific competition can affect the phenotypic characteristics of organisms.

Correct Answer
verified

Succession happens because species in the habitat alter that habitat in ways that assist other species.There are three dynamic concepts that are of critical importance for succession to take place.They are

Correct Answer
verified

Exam 55: Community Ecology

In ________ mimicry,unprotected species resemble others that are distasteful.

Correct AnswerverifiedShow Answer

Alligators excavate holes in the bottom of bodies of water.During times of severe drought these holes act as refugia for various aquatic organisms that might perish if there were no water available.Thus,alligators in this system can be classified as a(n)

Correct AnswerverifiedShow Answer

Based on the following graph,what is the most likely relationship between Paramecium and Didinium?

Correct AnswerverifiedShow Answer

Which of the following examples would be undergoing secondary succession? Check all that apply.

Correct AnswerverifiedShow Answer

Geographical allopatry between species is definitive evidence of interspecific competition.

Correct AnswerverifiedShow Answer

Chemicals that play the dominant role in protecting plants from being eaten by herbivores or predators are called

Correct AnswerverifiedShow Answer

Two of Darwin's finches display a character displacement when they occur as sympatric species.Which of the statements correctly interprets the graph?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

It is a situation in which a palatable organism resembles another kind of organism that is distasteful or toxic.

Correct AnswerverifiedShow Answer

The difference in the fundamental niche and the realized niche is

Correct AnswerverifiedShow Answer

In ________ mimicry,two or more unrelated but protected species resemble one another,thus achieving a kind of group defense.

Correct AnswerverifiedShow Answer

A relationship in which both members benefit is called

Correct AnswerverifiedShow Answer

Which of the following is an example of commensalism?

Correct AnswerverifiedShow Answer

Which of the following statements about mimicry are true? Check all that apply.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

In general,communities in early succession will be dominated by fast-growing species with r-selected life histories.

Correct AnswerverifiedShow Answer

Communities evolve to have greater biomass and species richness in a process called

Correct AnswerverifiedShow Answer

Paleontological studies indicate that,over millions of years,

Correct AnswerverifiedShow Answer

Interspecific competition can affect the phenotypic characteristics of organisms.

Correct AnswerverifiedShow Answer

Succession happens because species in the habitat alter that habitat in ways that assist other species.There are three dynamic concepts that are of critical importance for succession to take place.They are

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified