Question 1

Ecological succession ultimately results in:

Accepted Answer

A)  A climax community.
B)  An upper-limit stage.
C)  Competitive exclusion.
D)  Keystone predation.
E)  Vertical zonation.F) A) and E)
G) All of the above

Question 2

The sessile epifauna consists of:

Accepted Answer

A)  Attached seaweeds.
B)  Pelagic organisms.
C)  Burrowing animals.
D)  Animals that crawl over bottom.
E)  Attached animals.F) A) and B)
G) B) and E)

Question 3

One of these organisms is expected to be relatively rare on a rocky shore:

Accepted Answer

A)  Filter feeder.
B)  Carnivore.
C)  Primary producer.
D)  Grazer.
E)  Deposit feeder.F) A) and D)
G) None of the above

Question 4

Fine sediments are characteristic of:

Accepted Answer

A)  Shores exposed to wave action.
B)  Rocky shores.
C)  Areas with wide temperature fluctuations.
D)  Calm,less exposed shores.
E)  Areas that experience considerable water flow.F) C) and D)
G) D) and E)

Question 5

Which of these organisms usually dominates in the middle intertidal zone of a rocky shoreline?

Accepted Answer

A)  Limpets
B)  Sea weed
C)  Encrusting algae
D)  Barnacles
E)  Irish mossF) C) and D)
G) B) and E)

Question 6

One of these is more important than the others as a limiting resource in intertidal communities:

Accepted Answer

A)  Space.
B)  Food.
C)  Nutrients.
D)  Light.
E)  Salinity.F) A) and D)
G) B) and C)

Question 7

Besides fluctuatiions in salinity and water levels intertidal organisms must also withstand wide variations in:

Accepted Answer

A)  Temperatures.
B)  Light levels.
C)  Sediment deposition.
D)  Current velocities.
E)  None of the choices are correct.F) B) and C)
G) A) and B)

Question 8

The middle intertidal is characterized by:

Accepted Answer

A)  Constant wetting by splash and spray.
B)  Long exposure to air.
C)  Steady immersion.
D)  Exposure and immersion on a regular basis.
E)  Splashing during high tide and complete exposure at low tide.F) B) and D)
G) A) and D)

Question 9

Most animals living on sandy beaches are included among the due to wave action:

Accepted Answer

A)  Infauna.
B)  Deposit feeders.
C)  Epifauna.
D)  Producers.
E)  Grazers.F) None of the above
G) B) and E)

Question 10

Attachment of one organism to another in the intertidal is most likely a result of limited:

Accepted Answer

A)  Food.
B)  Space.
C)  Light.
D)  Nutrients.
E)  Mates.F) C) and D)
G) D) and E)

Question 11

What organism would be most likely to be found in the upper intertidal zone of a rocky shoreline?

Accepted Answer

A)  Mussels
B)  Sea weed
C)  Encrusting algae
D)  Barnacles
E)  Irish mossF) A) and B)
G) C) and E)

Question 12

On Atlantic shores,the dog whelk (Nucellalapillus) has two color forms,white-shelled and brown-shelled.Survival of one form over the other form in a region appears to be related to:

Accepted Answer

A)  temperature.
B)  Salinity.
C)  Substrate type.
D)  Prey availability.
E)  Predators.F) A) and E)
G) A) and D)

Question 13

Most sessile animals living on rocky shores are:

Accepted Answer

A)  Deposit feeders.
B)  Carnivores.
C)  Detritus feeders.
D)  Filter feeders.
E)  Grazers.F) D) and E)
G) B) and E)

Question 14

The lower limit of the intertidal zone is the:

Accepted Answer

A)  Average high tide.
B)  Average middle tide.
C)  Lowest low tide.
D)  Lowest edge of the rocky substrate.
E)  None of the choices are correct.F) A) and B)
G) None of the above

Question 15

In a soft-bottomed intertidal community,oxygen would be most plentiful for meiofauna in which type of bottom?

Accepted Answer

A)  Gravel
B)  Sand
C)  Silt
D)  Clay
E)  MudF) None of the above
G) B) and E)

Exam 11: Between the Tides

On Atlantic shores,the dog whelk (Nucellalapillus) has two color forms,white-shelled and brown-shelled.Survival of one form over the other form in a region appears to be related to:

Correct Answer
verified

Attachment of one organism to another in the intertidal is most likely a result of limited:

Correct Answer
verified

Ecological succession ultimately results in:

Correct Answer
verified

Which of these organisms usually dominates in the middle intertidal zone of a rocky shoreline?

Correct Answer
verified

Besides fluctuatiions in salinity and water levels intertidal organisms must also withstand wide variations in:

Correct Answer
verified

Most animals living on sandy beaches are included among the due to wave action:

Correct Answer
verified

Most sessile animals living on rocky shores are:

Correct Answer
verified

Fine sediments are characteristic of:

Correct Answer
verified

The middle intertidal is characterized by:

Correct Answer
verified

In a soft-bottomed intertidal community,oxygen would be most plentiful for meiofauna in which type of bottom?

Correct Answer
verified

The sessile epifauna consists of:

Correct Answer
verified

One of these is more important than the others as a limiting resource in intertidal communities:

Correct Answer
verified

What organism would be most likely to be found in the upper intertidal zone of a rocky shoreline?

Correct Answer
verified

The lower limit of the intertidal zone is the:

Correct Answer
verified

One of these organisms is expected to be relatively rare on a rocky shore:

Correct Answer
verified

Exam 11: Between the Tides

On Atlantic shores,the dog whelk (Nucellalapillus) has two color forms,white-shelled and brown-shelled.Survival of one form over the other form in a region appears to be related to:

Correct AnswerverifiedShow Answer

Attachment of one organism to another in the intertidal is most likely a result of limited:

Correct AnswerverifiedShow Answer

Ecological succession ultimately results in:

Correct AnswerverifiedShow Answer

Which of these organisms usually dominates in the middle intertidal zone of a rocky shoreline?

Correct AnswerverifiedShow Answer

Besides fluctuatiions in salinity and water levels intertidal organisms must also withstand wide variations in:

Correct AnswerverifiedShow Answer

Most animals living on sandy beaches are included among the due to wave action:

Correct AnswerverifiedShow Answer

Most sessile animals living on rocky shores are:

Correct AnswerverifiedShow Answer

Fine sediments are characteristic of:

Correct AnswerverifiedShow Answer

The middle intertidal is characterized by:

Correct AnswerverifiedShow Answer

In a soft-bottomed intertidal community,oxygen would be most plentiful for meiofauna in which type of bottom?

Correct AnswerverifiedShow Answer

The sessile epifauna consists of:

Correct AnswerverifiedShow Answer

One of these is more important than the others as a limiting resource in intertidal communities:

Correct AnswerverifiedShow Answer

What organism would be most likely to be found in the upper intertidal zone of a rocky shoreline?

Correct AnswerverifiedShow Answer

The lower limit of the intertidal zone is the:

Correct AnswerverifiedShow Answer

One of these organisms is expected to be relatively rare on a rocky shore:

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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