Question 1

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 moss 
A) Limpets 
B) Sea weed 
C) Encrusting algae 
D) Barnacles 
E) Irish moss

Question 2

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. 
A) Filter feeder. 
B) Carnivore. 
C) Primary producer. 
D) Grazer. 
E) Deposit feeder.

Question 3

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. 
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.

Question 4

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. 
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.

Question 5

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. 
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.

Question 6

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

Question 7

Most sessile animals living on rocky shores are:

Accepted Answer

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

Question 8

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

Question 9

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

Question 10

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) Mud 
A) Gravel 
B) Sand 
C) Silt 
D) Clay 
E) Mud

Question 11

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. 
A) Infauna. 
B) Deposit feeders. 
C) Epifauna. 
D) Producers. 
E) Grazers.

Question 12

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. 
A) A climax community. 
B) An upper-limit stage. 
C) Competitive exclusion. 
D) Keystone predation. 
E) Vertical zonation.

Question 13

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

Question 14

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 moss 
A) Mussels 
B) Sea weed 
C) Encrusting algae 
D) Barnacles 
E) Irish moss

Question 15

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

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

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

Fine sediments are characteristic of:

The middle intertidal is characterized by:

The lower limit of the intertidal zone is the:

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

Most sessile animals living on rocky shores are:

The sessile epifauna consists of:

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

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

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

Ecological succession ultimately results in:

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:

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

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

The Science of Marine Biology

The Sea Floor

Chemical and Physical Features of Seawater and the World Ocean

Fundamentals of Biology

The Microbial World

Multicellular Primary Producers: Seaweeds and Plants

Marine Animals Without a Backbone

Marine Fishes

Marine Reptiles, Birds, and Mammals

An Introduction to Marine Ecology

Estuaries: Where Rivers Meet the Sea

Life on the Continental Shelf

Coral Reefs

Life Near the Surface

The Ocean Depths

Resources From the Sea

The Impact of Humans on the Marine Environment

The Oceans and Human Affairs

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Exam 11: Between the Tides

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

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

Fine sediments are characteristic of:

The middle intertidal is characterized by:

The lower limit of the intertidal zone is the:

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

Most sessile animals living on rocky shores are:

The sessile epifauna consists of:

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

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

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

Ecological succession ultimately results in:

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:

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

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

The Science of Marine Biology

The Sea Floor

Chemical and Physical Features of Seawater and the World Ocean

Fundamentals of Biology

The Microbial World

Multicellular Primary Producers: Seaweeds and Plants

Marine Animals Without a Backbone

Marine Fishes

Marine Reptiles, Birds, and Mammals

An Introduction to Marine Ecology

Estuaries: Where Rivers Meet the Sea

Life on the Continental Shelf

Coral Reefs

Life Near the Surface

The Ocean Depths

Resources From the Sea

The Impact of Humans on the Marine Environment

The Oceans and Human Affairs

Filters