Question 1

The lack of corals near the mouths of the Orinoco and Amazon rivers is primarily due to:

Accepted Answer

A)   cool northern flowing currents.
B)   cool upwelling water.
C)   massive fresh water out-flow.
D)   clear water.
E)   both a and b

Question 2

The Atlantic Ocean supports fewer coral species because most of the Atlantic is

Accepted Answer

A)   too warm.
B)   too stagnant.
C)   too clear.
D)   too cold.
E)   too nutrient-rich.

Question 3

High production of coral reefs relative to the surrounding sea is attributed to:

Accepted Answer

A)   the coral's ability to trap nutrients.
B)   the unique structure of the corals.
C)   the abundant phytoplankton surrounding the coral animals.
D)   the symbiotic relationship of coral animals and dinoflagellates.

Question 4

Match the use of a color pattern of coral fish with the most closely associated fish.
-Harlequin tusk wrasse

Accepted Answer

A)  defending territories
B)  indicates sex
C)  warning coloration
D)  cryptic coloration
E)  color changes between day and night

Question 5

The ecological model that high reef fish diversity is due to niche diversity is called:

Accepted Answer

A)   competition model.
B)   predation disturbance model.
C)   lottery model.
D)   resource limitation model.
E)   bet hedging model.

Question 6

Ahermatypic refers to:

Accepted Answer

A)   reef building corals.
B)   non-reef building corals.
C)   plate coral.
D)   brain coral.
E)   finger coral.

Question 7

Describe at least 3 physical factors that limit coral reef distribution.

Accepted Answer

The reef building corals require a minim...

Question 8

Massive forms of coral dominate:

Accepted Answer

A)   in the upper areas of the reef.
B)   in all areas of the reef.
C)   in deeper areas of the reef.
D)   in areas of the reef which receive the most light.
E)   on the top of the reef crest.

Question 9

Clownfishes are involved in a symbiotic relationship with:

Accepted Answer

A)   corals.
B)   anemones.
C)   pearlfishes.
D)   sea cucumbers.
E)   sea fans.

Question 10

Match the symbiosis feature with its most closely associated species.
-Wrasses

Accepted Answer

A)  shelter
B)  protective covering
C)  cleaners
D)  internal commensal

Question 11

All of the following are filter feeding dwellers of coral reefs except:

Accepted Answer

A)   Christmas tree worms.
B)   sponges.
C)   giant clam.
D)   cone snails.
E)   tunicates.

Question 12

Hermatypic corals are the principal reef building corals.

Accepted Answer

A) True 
 B)False

Question 13

Coral reefs found very close to the shore of islands and continents are called:

Accepted Answer

A)   atolls.
B)   barrier reefs.
C)   table reefs.
D)   fringing reefs.

Question 14

Fast-growing algae are prevented from out competing corals due to:

Accepted Answer

A)   low nutrients inhibiting their growth.
B)   grazing on algae by herbivores.
C)   sensitivity to pressure increasing with depth.
D)   damselfish activity.
E)   b and d

Question 15

Sessile and sedentary reef dwellers include

Accepted Answer

A)   sponges and cnidarians.
B)   crustaceans.
C)   many molluscs.
D)   fish.
E)   cephalopods.

Question 16

Match the organism with the reef-building formation process it is most closely associated with.
-Forms a loose structure

Accepted Answer

A)  Coralline algae
B)  Halimeda
C)  Sponges and bryzoans

Question 17

How do some corals reproduce asexually?

Accepted Answer

Corals can reproduce asexually...

Question 18

The spur-and-groove formation of coral reefs is used as a means of:

Accepted Answer

A)   obtaining more sunlight.
B)   dissipating the energy of the waves.
C)   ensuring good circulation.
D)   capturing more zooplankton.
E)   directing fish migrations.

Question 19

An organism that can eviscerate its internal organs when stressed is the:

Accepted Answer

A)   sea star.
B)   sea cucumber.
C)   crinoid.
D)   sea urchin.
E)   brittle star.

Question 20

Coral reefs separated from land by a lagoon or deep water channel are called:

Accepted Answer

A)   atolls.
B)   barrier reefs.
C)   table reefs.
D)   fringing reefs.
E)   patch reefs.

Exam 15: Coral Reef Communities

Massive forms of coral dominate:

Correct AnswerverifiedShow Answer

Coral reefs separated from land by a lagoon or deep water channel are called:

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Sessile and sedentary reef dwellers include

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The lack of corals near the mouths of the Orinoco and Amazon rivers is primarily due to:

Correct AnswerverifiedShow Answer

All of the following are filter feeding dwellers of coral reefs except:

Correct AnswerverifiedShow Answer

The Atlantic Ocean supports fewer coral species because most of the Atlantic is

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Match the use of a color pattern of coral fish with the most closely associated fish. -Harlequin tusk wrasse

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Match the symbiosis feature with its most closely associated species. -Wrasses

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Match the organism with the reef-building formation process it is most closely associated with. -Forms a loose structure

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Coral reefs found very close to the shore of islands and continents are called:

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Fast-growing algae are prevented from out competing corals due to:

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Ahermatypic refers to:

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How do some corals reproduce asexually?

Correct AnswerverifiedCorals can reproduce asexually...View AnswerShow Answer

The spur-and-groove formation of coral reefs is used as a means of:

Correct AnswerverifiedShow Answer

Hermatypic corals are the principal reef building corals.

Correct AnswerverifiedShow Answer

The ecological model that high reef fish diversity is due to niche diversity is called:

Correct AnswerverifiedShow Answer

Clownfishes are involved in a symbiotic relationship with:

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Describe at least 3 physical factors that limit coral reef distribution.

Correct AnswerverifiedThe reef building corals require a minim...View AnswerShow Answer

High production of coral reefs relative to the surrounding sea is attributed to:

Correct AnswerverifiedShow Answer

An organism that can eviscerate its internal organs when stressed is the:

Correct AnswerverifiedShow Answer

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Corals can reproduce asexually...
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The reef building corals require a minim...
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