Question 1

Species diversity is highest in coral reef communities.

Accepted Answer

A) True 
 B)False

Question 2

All of the following are examples of strategies employed by organisms to reduce wave shock in the rocky intertidal zone except:

Accepted Answer

A)  attachment threads.
B)  muscular foot.
C)  holdfasts.
D)  motile larvae.
E)  the use of suction to attach to rocks.F) All of the above
G) B) and D)

Question 3

Sewage discharge and fertilizer runoff is detrimental to coral growth because it increases the:

Accepted Answer

A)  amount of inorganic nutrients in the water that stimulates excessive algal growth.
B)  amount of toxic synthetic chemicals which stimulate excessive bacterial growth.
C)  salinity of the water that results in coral bleaching.
D)  water temperature that kills zooxanthellae.
E)  water temperature that results in coral bleaching.F) C) and D)
G) B) and E) A

Question 4

Match the organism with the appropriate habitat. You may use each answer once, more than once or not at all.
-kelp

Accepted Answer

A)  subtidal rocky bottoms
B)  sandy beaches
C)  mud flatsD) A) and C)
E) B) and C)

Question 5

The Crown of Thorns sea star may be increasingly more common because its predators are fish species belonging to populations that have dramatically decreased due to overfishing.

Accepted Answer

A) True 
 B)False

Question 6

Refer to the figure below to answer the following question.
 
-Within the intertidal zone, the area that receives equal amounts of air exposure and water coverage is indicated by the number:

Accepted Answer

A)  1) 
B)  3) 
C)  5) 
D)  6) 
E)  7) F) A) and C)
G) B) and D)

Question 7

Hypersaline seep communities rely on photosynthesis.

Accepted Answer

A) True 
 B)False

Question 8

Match the organism with the appropriate zone. You may use each answer once, more than once or not at all.
-Pisaster (sea star)

Accepted Answer

A)  supratidal zone
B)  middle tide zone
C)  high tide zone, supratidal zone
D)  low tide zone
E)  middle tide zone, tide poolF) high tide zoneG) D) and F)
H) D) and E)

Question 9

Match the organism with the appropriate zone. You may use each answer once, more than once or not at all.
-Fucus (rock weed)

Accepted Answer

A)  supratidal zone
B)  middle tide zone
C)  high tide zone, supratidal zone
D)  low tide zone
E)  middle tide zone, tide poolF) high tide zoneG) A) and B)
H) B) and C)

Question 10

Describe the role of meiofauna in nature. Why are meiofauna concentrated in the spaces between sediment particles?

Accepted Answer

Meiofauna play a crucial role in the eco...

Question 11

Two dominant organisms of the rocky shore found high on the rocks of the intertidal zone are:

Accepted Answer

A)  buckshot barnacles and limpets.
B)  goose barnacles and mussels.
C)  keyhole limpets and Irish moss.
D)  periwinkle snails and kelp.
E)  sea anemones and hermit crabs.F) A) and C)
G) C) and D)

Question 12

Hermit crabs are commonly found inhabitants of tide pools.

Accepted Answer

A) True 
 B)False

Question 13

Coral reefs contain more algal biomass than animal biomass.

Accepted Answer

A) True 
 B)False

Question 14

The three varieties of seeps on the seafloor include hypersaline, hydrocarbon and:

Accepted Answer

A)  abyssal plain seeps.
B)  deep-sea trench seeps.
C)  mid-ocean ridge seeps
D)  seamount seeps.
E)  subduction zone seeps.F) C) and D)
G) A) and C)

Question 15

Discuss the role of sea urchins in kelp forest ecosystems.

Accepted Answer

Sea urchins play a crucial role in kelp ...

Question 16

Match the organism with the appropriate habitat. You may use each answer once, more than once or not at all.
-sand dollar

Accepted Answer

A)  subtidal rocky bottoms
B)  sandy beaches
C)  mud flatsD) All of the above
E) A) and B)

Question 17

Match the organism with the appropriate habitat. You may use each answer once, more than once or not at all.
-heart urchins (Echinocardium)

Accepted Answer

A)  subtidal rocky bottoms
B)  sandy beaches
C)  mud flatsD) None of the above
E) A) and B) B

Question 18

All of the following are true of corals except:

Accepted Answer

A)  they are small benthic marine animals that feed with stinging tentacles.
B)  the distribution of reef-building corals is greater in the tropics.
C)  corals grow in shallow water with high light and relatively low nutrient input.
D)  hermatypic coral polyps contain symbiotic algae.
E)  corals have obligate endosymbionts.F) A) and B)
G) A) and C)

Question 19

Match the organism with the appropriate zone. You may use each answer once, more than once or not at all.
-Littorina (periwinkle snail)

Accepted Answer

A)  supratidal zone
B)  middle tide zone
C)  high tide zone, supratidal zone
D)  low tide zone
E)  middle tide zone, tide poolF) high tide zoneG) All of the above
H) A) and B)

Question 20

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option that does not fit the pattern.

Accepted Answer

A)   regeneration
B)   inking
C)   mimicry
D)   stinging cells
E)   withdrawal into shellF) C) and E)
G) A) and B) C

Exam 15: Animals of the Benthic Environment

Species diversity is highest in coral reef communities.

Correct AnswerverifiedShow Answer

All of the following are examples of strategies employed by organisms to reduce wave shock in the rocky intertidal zone except:

Correct AnswerverifiedShow Answer

Sewage discharge and fertilizer runoff is detrimental to coral growth because it increases the:

Correct AnswerverifiedA

Match the organism with the appropriate habitat. You may use each answer once, more than once or not at all. -kelp

Correct AnswerverifiedShow Answer

The Crown of Thorns sea star may be increasingly more common because its predators are fish species belonging to populations that have dramatically decreased due to overfishing.

Correct AnswerverifiedShow Answer

Refer to the figure below to answer the following question. -Within the intertidal zone, the area that receives equal amounts of air exposure and water coverage is indicated by the number:

Correct AnswerverifiedShow Answer

Hypersaline seep communities rely on photosynthesis.

Correct AnswerverifiedShow Answer

Match the organism with the appropriate zone. You may use each answer once, more than once or not at all. -Pisaster (sea star)

Correct AnswerverifiedShow Answer

Match the organism with the appropriate zone. You may use each answer once, more than once or not at all. -Fucus (rock weed)

Correct AnswerverifiedShow Answer

Describe the role of meiofauna in nature. Why are meiofauna concentrated in the spaces between sediment particles?

Correct AnswerAnswered by ExamLex AIMeiofauna play a crucial role in the eco...View AnswerShow Answer

Two dominant organisms of the rocky shore found high on the rocks of the intertidal zone are:

Correct AnswerverifiedShow Answer

Hermit crabs are commonly found inhabitants of tide pools.

Correct AnswerverifiedShow Answer

Coral reefs contain more algal biomass than animal biomass.

Correct AnswerverifiedShow Answer

The three varieties of seeps on the seafloor include hypersaline, hydrocarbon and:

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Discuss the role of sea urchins in kelp forest ecosystems.

Correct AnswerAnswered by ExamLex AISea urchins play a crucial role in kelp ...View AnswerShow Answer

Match the organism with the appropriate habitat. You may use each answer once, more than once or not at all. -sand dollar

Correct AnswerverifiedShow Answer

Match the organism with the appropriate habitat. You may use each answer once, more than once or not at all. -heart urchins (Echinocardium)

Correct AnswerverifiedB

All of the following are true of corals except:

Correct AnswerverifiedShow Answer

Match the organism with the appropriate zone. You may use each answer once, more than once or not at all. -Littorina (periwinkle snail)

Correct AnswerverifiedShow Answer

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option that does not fit the pattern.

Correct AnswerverifiedC

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Answered by ExamLex AI
Meiofauna play a crucial role in the eco...
View Answer

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Answered by ExamLex AI
Sea urchins play a crucial role in kelp ...
View Answer

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B

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C