Question 1

Deep-water mound-building corals lack which of the following?

Accepted Answer

A) Calcium-carbonate 
B) Any type of polyp structure 
C) The ability to sexually reproduce 
D) Zooxanthellae 
A) Calcium-carbonate 
B) Any type of polyp structure 
C) The ability to sexually reproduce 
D) Zooxanthellae D

Question 2

Giant clams are very large in size because of they:

Accepted Answer

A) Utilize dissolved organic matter from the water. 
B) Filter a large volume of water. 
C) Are deposit as well as a suspension feeder. 
D) Are parasites when young. 
E) Have zooxanthellae. 
A) Utilize dissolved organic matter from the water. 
B) Filter a large volume of water. 
C) Are deposit as well as a suspension feeder. 
D) Are parasites when young. 
E) Have zooxanthellae. E

Question 3

The most common type of coral reefs around the world are:

Accepted Answer

A) Barrier. 
B) Atolls. 
C) Coral knolls. 
D) Oyster reefs. 
E) Fringing. 
A) Barrier. 
B) Atolls. 
C) Coral knolls. 
D) Oyster reefs. 
E) Fringing. E

Question 4

Reef corals compete with soft corals for space.One competitive advantage of soft corals is their:

Accepted Answer

A) Color. 
B) Toxic chemicals. 
C) Special stinging cells. 
D) Ability to destroy zooxanthellae of corals. 
E) Ability to dissolve the skeleton of corals. 
A) Color. 
B) Toxic chemicals. 
C) Special stinging cells. 
D) Ability to destroy zooxanthellae of corals. 
E) Ability to dissolve the skeleton of corals.

Question 5

Generally,an important distinction between barrier and fringing reefs is that barrier reefs:

Accepted Answer

A) Develop from atolls. 
B) Develop farther away from land. 
C) Are found only in the Pacific. 
D) Are found only in the Caribbean. 
E) Do not have a reef flat. 
A) Develop from atolls. 
B) Develop farther away from land. 
C) Are found only in the Pacific. 
D) Are found only in the Caribbean. 
E) Do not have a reef flat.

Question 6

Besides reef-building corals,the most important organisms that help form coral reefs are:

Accepted Answer

A) Sponges. 
B) Molluscs. 
C) Bryozoans. 
D) Coralline algae. 
E) Forams. 
A) Sponges. 
B) Molluscs. 
C) Bryozoans. 
D) Coralline algae. 
E) Forams.

Question 7

A toxicity that can develop when herbivorous fish ingest too many dinoflagullates is:

Accepted Answer

A) Obligate symbiosis. 
B) Parasitosis. 
C) Undulate fever. 
D) Ciguatera. 
E) Tularemia. 
A) Obligate symbiosis. 
B) Parasitosis. 
C) Undulate fever. 
D) Ciguatera. 
E) Tularemia.

Question 8

Reef-building corals are cnidarians that are characterized by:

Accepted Answer

A) Having both a polyp and medusa stage. 
B) Lacking nematocysts. 
C) Having mostly a medusa stage. 
D) Lacking a mouth. 
E) Having only a polyp stage. 
A) Having both a polyp and medusa stage. 
B) Lacking nematocysts. 
C) Having mostly a medusa stage. 
D) Lacking a mouth. 
E) Having only a polyp stage.

Question 9

Primary production is very high in coral reefs but low in surrounding waters.One reason for this is that:

Accepted Answer

A) Coralline algae and other algae are very abundant. 
B) There is abundant carbon dioxide in coral reefs. 
C) Nutrients are efficiently recycled within the reef community. 
D) Zooxanthellae increase the amount of dissolved oxygen in the water. 
E) Turf algae release nutrients. 
A) Coralline algae and other algae are very abundant. 
B) There is abundant carbon dioxide in coral reefs. 
C) Nutrients are efficiently recycled within the reef community. 
D) Zooxanthellae increase the amount of dissolved oxygen in the water. 
E) Turf algae release nutrients.

Question 10

The recruitment of coral reef fishes seems to be the result of one of these phenomena:

Accepted Answer

A) Species tend to avoid competition. 
B) Each species has its own ecological niche but it is modified to avoid direct competition. 
C) Corals over compete other organisms as long as they keep their zooxanthellae. 
D) The outcome of competition is based mostly on chance. 
E) Species actually chose when to compete and when to move elsewhere. 
A) Species tend to avoid competition. 
B) Each species has its own ecological niche but it is modified to avoid direct competition. 
C) Corals over compete other organisms as long as they keep their zooxanthellae. 
D) The outcome of competition is based mostly on chance. 
E) Species actually chose when to compete and when to move elsewhere.

Question 11

Which of the following is not used directly by corals for nutrition?

Accepted Answer

A) Zooxanthellae 
B) Mesenterial filaments 
C) Photosynthesis 
D) Mucus 
E) Tentacles 
A) Zooxanthellae 
B) Mesenterial filaments 
C) Photosynthesis 
D) Mucus 
E) Tentacles

Question 12

In a typical fringing reef,most of the living coral is found on the:

Accepted Answer

A) Reef flat. 
B) Fore reef. 
C) Reef crest. 
D) Reef slope. 
E) Coral knolls. 
A) Reef flat. 
B) Fore reef. 
C) Reef crest. 
D) Reef slope. 
E) Coral knolls.

Question 13

Eutrophication is very detrimental to the development of coral since it increases:

Accepted Answer

A) The amount of nutrients in the water,hence providing the conditionsfor the overgrowth of algae. 
B) The temperature of the water,which kills the corals. 
C) The temperature of the water,which kills the zooxanthellae. 
D) The salinity of the water,which kills the corals. 
E) The amount of pollutants in the water. 
A) The amount of nutrients in the water,hence providing the conditionsfor the overgrowth of algae. 
B) The temperature of the water,which kills the corals. 
C) The temperature of the water,which kills the zooxanthellae. 
D) The salinity of the water,which kills the corals. 
E) The amount of pollutants in the water.

Question 14

Spur-and-groove formations,or buttresses,appear to be the result of:

Accepted Answer

A) Fish grazing. 
B) The death of coralline algae. 
C) Accumulation of sand. 
D) The death of coral after a series of very low tides. 
E) Wind and waves. 
A) Fish grazing. 
B) The death of coralline algae. 
C) Accumulation of sand. 
D) The death of coral after a series of very low tides. 
E) Wind and waves.

Question 15

Zooxanthellae are essential to reef-building corals because they:

Accepted Answer

A) Provide the coral with carbon dioxide. 
B) Filter-out harmful solar radiation. 
C) Provide the coral with protection from predators. 
D) Release mucus. 
E) Help in the deposition of the calcium-carbonate skeleton. 
A) Provide the coral with carbon dioxide. 
B) Filter-out harmful solar radiation. 
C) Provide the coral with protection from predators. 
D) Release mucus. 
E) Help in the deposition of the calcium-carbonate skeleton.

Question 16

Most atolls are found in the:

Accepted Answer

A) Indo-West Pacific region. 
B) Caribbean. 
C) Eastern Pacific along Central America. 
D) The eastern Atlantic. 
E) Western Pacific along the Australian coast. 
A) Indo-West Pacific region. 
B) Caribbean. 
C) Eastern Pacific along Central America. 
D) The eastern Atlantic. 
E) Western Pacific along the Australian coast.

Question 17

Fringing and barrier reefs develop:

Accepted Answer

A) In waters along estuaries. 
B) In the open ocean far from land. 
C) Along a coast. 
D) Around islands in temperate regions. 
E) Near atolls. 
A) In waters along estuaries. 
B) In the open ocean far from land. 
C) Along a coast. 
D) Around islands in temperate regions. 
E) Near atolls.

Question 18

Which of the following is the latest stage in coral reef development on volcanic islands?

Accepted Answer

A) Fringing reef 
B) Barrier Reef 
C) Atoll 
D) Patch reef 
A) Fringing reef 
B) Barrier Reef 
C) Atoll 
D) Patch reef

Question 19

Coral reefs are important and very unique ecosystems because they have more ______________ than any other comparible area of the world's oceans.

Accepted Answer

A) Water flow and wave action. 
B) Greatest amount of biodiversity. 
C) Most detritus production. 
D) Greatest sediment accumulation. 
A) Water flow and wave action. 
B) Greatest amount of biodiversity. 
C) Most detritus production. 
D) Greatest sediment accumulation.

Question 20

Reef-building corals grow only in shallow water because:

Accepted Answer

A) Salinity varies less in shallow water. 
B) Zooxanthellae need light for photosynthesis. 
C) Calcium carbonate is only available in shallow water. 
D) Nutrients concentrate in shallow water. 
E) Shallow water contains more dissolved organic matter (DOM). 
A) Salinity varies less in shallow water. 
B) Zooxanthellae need light for photosynthesis. 
C) Calcium carbonate is only available in shallow water. 
D) Nutrients concentrate in shallow water. 
E) Shallow water contains more dissolved organic matter (DOM).

Deep-water mound-building corals lack which of the following?

Giant clams are very large in size because of they:

The most common type of coral reefs around the world are:

Reef corals compete with soft corals for space.One competitive advantage of soft corals is their:

Generally,an important distinction between barrier and fringing reefs is that barrier reefs:

Besides reef-building corals,the most important organisms that help form coral reefs are:

A toxicity that can develop when herbivorous fish ingest too many dinoflagullates is:

Reef-building corals are cnidarians that are characterized by:

Primary production is very high in coral reefs but low in surrounding waters.One reason for this is that:

The recruitment of coral reef fishes seems to be the result of one of these phenomena:

Which of the following is not used directly by corals for nutrition?

In a typical fringing reef,most of the living coral is found on the:

Eutrophication is very detrimental to the development of coral since it increases:

Spur-and-groove formations,or buttresses,appear to be the result of:

Zooxanthellae are essential to reef-building corals because they:

Most atolls are found in the:

Fringing and barrier reefs develop:

Which of the following is the latest stage in coral reef development on volcanic islands?

Coral reefs are important and very unique ecosystems because they have more ______________ than any other comparible area of the world's oceans.

Reef-building corals grow only in shallow water because:

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

Between the Tides

Estuaries: Where Rivers Meet the Sea

Life on the Continental Shelf

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 14: Coral Reefs

Deep-water mound-building corals lack which of the following?

Giant clams are very large in size because of they:

The most common type of coral reefs around the world are:

Reef corals compete with soft corals for space.One competitive advantage of soft corals is their:

Generally,an important distinction between barrier and fringing reefs is that barrier reefs:

Besides reef-building corals,the most important organisms that help form coral reefs are:

A toxicity that can develop when herbivorous fish ingest too many dinoflagullates is:

Reef-building corals are cnidarians that are characterized by:

Primary production is very high in coral reefs but low in surrounding waters.One reason for this is that:

The recruitment of coral reef fishes seems to be the result of one of these phenomena:

Which of the following is not used directly by corals for nutrition?

In a typical fringing reef,most of the living coral is found on the:

Eutrophication is very detrimental to the development of coral since it increases:

Spur-and-groove formations,or buttresses,appear to be the result of:

Zooxanthellae are essential to reef-building corals because they:

Most atolls are found in the:

Fringing and barrier reefs develop:

Which of the following is the latest stage in coral reef development on volcanic islands?

Coral reefs are important and very unique ecosystems because they have more ______________ than any other comparible area of the world's oceans.

Reef-building corals grow only in shallow water because:

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

Between the Tides

Estuaries: Where Rivers Meet the Sea

Life on the Continental Shelf

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