Question 1

Zooxanthellae are highly specialized cyanobacteria that form a symbiotic relationship with corals.

Accepted Answer

A) True 
 B)False

Question 2

Episodes of coral bleaching have become more frequent and more severe in the last twenty years.

Accepted Answer

A) True 
 B)False

Question 3

Intertidal communities have low productivity because of high wave activity.

Accepted Answer

A) True 
 B)False

Question 4

Animals that burrow into the seafloor are members of the epifauna.

Accepted Answer

A) True 
 B)False

Question 5

Benthic organisms living in the bottoms of trenches live in the ________ zone.

Accepted Answer

A)  bathyal 
B)  sublittoral 
C)  abyssal 
D)  hadal 
E)  supralittoral 
A)  bathyal 
B)  sublittoral 
C)  abyssal 
D)  hadal 
E)  supralittoral

Question 6

One adaptation of many intertidal invertebrates is to develop a rounded profile to minimize resistance to breaking waves.

Accepted Answer

A) True 
 B)False

Question 7

A close relationship between unrelated organisms in which one organism benefits and the other is unaffected is known as

Accepted Answer

A)  symbiosis. 
B)  commensalism. 
C)  parasitism. 
D)  mutualism. 
E)  symbiosis and commensalism. 
A)  symbiosis. 
B)  commensalism. 
C)  parasitism. 
D)  mutualism. 
E)  symbiosis and commensalism.

Question 8

An individual coral animal is known as a/an

Accepted Answer

A)  zooxanthella. 
B)  sponge. 
C)  polyp. 
D)  alga. 
E)  zooxanthella or polyp. 
A)  zooxanthella. 
B)  sponge. 
C)  polyp. 
D)  alga. 
E)  zooxanthella or polyp.

Question 9

Coral bleaching results in

Accepted Answer

A)  the expulsion of zooxanthellae from corals. 
B)  the weakening of corals and higher levels of disease. 
C)  the death of many corals. 
D)  All of these are correct. 
E)  None of these are correct. 
A)  the expulsion of zooxanthellae from corals. 
B)  the weakening of corals and higher levels of disease. 
C)  the death of many corals. 
D)  All of these are correct. 
E)  None of these are correct.

Question 10

The symbiotic relationship between coral polyps and zooxanthellae is an example of

Accepted Answer

A)  commensalism. 
B)  mutualism. 
C)  parasitism. 
D)  All of these are correct. 
E)  None of these are correct. 
A)  commensalism. 
B)  mutualism. 
C)  parasitism. 
D)  All of these are correct. 
E)  None of these are correct.

Question 11

Intertidal zonation on a rocky beach is primarily controlled by the

Accepted Answer

A)  type of bottom. 
B)  prey-predator relationships. 
C)  salinity, temperature, and pressure. 
D)  amount of time an organism spends out of water. 
E)  organisms's metabolism. 
A)  type of bottom. 
B)  prey-predator relationships. 
C)  salinity, temperature, and pressure. 
D)  amount of time an organism spends out of water. 
E)  organisms's metabolism.

Question 12

Animals and algae living attached to the bottom are members of the

Accepted Answer

A)  phytoplankton. 
B)  zooplankton. 
C)  nekton. 
D)  benthos. 
E)  All of these are correct. 
A)  phytoplankton. 
B)  zooplankton. 
C)  nekton. 
D)  benthos. 
E)  All of these are correct.

Question 13

The base of the food chain in hydrothermal vent communities is phytoplankton.

Accepted Answer

A) True 
 B)False

Question 14

Marine vascular flowering plants include all of the following except

Accepted Answer

A)  mangroves. 
B)  kelps. 
C)  seagrasses. 
D)  cord grass. 
E)  surf grass. 
A)  mangroves. 
B)  kelps. 
C)  seagrasses. 
D)  cord grass. 
E)  surf grass.

Question 15

The size and shape of sediment particles influences both the ______________, or amount of space between particles, and _______________ the flow of water and gases.

Accepted Answer

A)  porosity; permeability 
B)  porosity; rugosity 
C)  permeability; inundation 
D)  exchange; permeability 
A)  porosity; permeability 
B)  porosity; rugosity 
C)  permeability; inundation 
D)  exchange; permeability

Question 16

Bacteria are a valuable source of protein for other marine organisms.

Accepted Answer

A) True 
 B)False

Question 17

Chemosynthetic communities are found associated with

Accepted Answer

A)  hydrothermal vents. 
B)  oil and gas seeps. 
C)  salt brine seeps. 
D)  All of these are correct. 
E)  None of these are correct. 
A)  hydrothermal vents. 
B)  oil and gas seeps. 
C)  salt brine seeps. 
D)  All of these are correct. 
E)  None of these are correct.

Question 18

The holdfast that attaches seaweed to rocks or shells is a root.

Accepted Answer

A) True 
 B)False

Question 19

CLOD or Coral Lethal Orange Disease

Accepted Answer

A)  attacks and kills coral polyps. 
B)  kills zooxanthellae causing bleaching. 
C)  kills algae that cement sand debris to form a hard surface reef. 
D)  kills clams and crabs on coral reefs. 
E)  attacks and kills coral polyps, kills zooxanthellae causing bleaching, and kills algae that cement sand debris to form a hard surface reef. 
A)  attacks and kills coral polyps. 
B)  kills zooxanthellae causing bleaching. 
C)  kills algae that cement sand debris to form a hard surface reef. 
D)  kills clams and crabs on coral reefs. 
E)  attacks and kills coral polyps, kills zooxanthellae causing bleaching, and kills algae that cement sand debris to form a hard surface reef.

Question 20

Zooxanthellae are

Accepted Answer

A)  dinoflagellates living in tropical corals. 
B)  copepods feeding on diatoms and dinoflagellates. 
C)  bacteria associated with hydrothermal vents. 
D)  the same thing as krill. 
E)  members of the meroplankton. 
A)  dinoflagellates living in tropical corals. 
B)  copepods feeding on diatoms and dinoflagellates. 
C)  bacteria associated with hydrothermal vents. 
D)  the same thing as krill. 
E)  members of the meroplankton.

Zooxanthellae are highly specialized cyanobacteria that form a symbiotic relationship with corals.

Episodes of coral bleaching have become more frequent and more severe in the last twenty years.

Intertidal communities have low productivity because of high wave activity.

Animals that burrow into the seafloor are members of the epifauna.

Benthic organisms living in the bottoms of trenches live in the ________ zone.

One adaptation of many intertidal invertebrates is to develop a rounded profile to minimize resistance to breaking waves.

A close relationship between unrelated organisms in which one organism benefits and the other is unaffected is known as

An individual coral animal is known as a/an

Coral bleaching results in

The symbiotic relationship between coral polyps and zooxanthellae is an example of

Intertidal zonation on a rocky beach is primarily controlled by the

Animals and algae living attached to the bottom are members of the

The base of the food chain in hydrothermal vent communities is phytoplankton.

Marine vascular flowering plants include all of the following except

The size and shape of sediment particles influences both the , or amount of space between particles, and _ the flow of water and gases.

Bacteria are a valuable source of protein for other marine organisms.

Chemosynthetic communities are found associated with

The holdfast that attaches seaweed to rocks or shells is a root.

CLOD or Coral Lethal Orange Disease

Zooxanthellae are

The Water Planet

Earth Structure and Plate Tectonics

The Sea Floor and Its Sediments

The Physical Properties of Water

Seawater

The Atmosphere and the Oceans

Ocean Structure and Circulation

The Waves

The Tides

Coasts, Beaches, and Estuaries

The Living Ocean

The Plankton, Energy, and Food Webs

The Nekton: Swimmers of the Sea

Environmental Issues

The Oceans and Climate Disruption

Prologue: The History of Oceanography

Filters

Exam 14: The Benthos: Living on the Sea Floor

Zooxanthellae are highly specialized cyanobacteria that form a symbiotic relationship with corals.

Episodes of coral bleaching have become more frequent and more severe in the last twenty years.

Intertidal communities have low productivity because of high wave activity.

Animals that burrow into the seafloor are members of the epifauna.

Benthic organisms living in the bottoms of trenches live in the ________ zone.

One adaptation of many intertidal invertebrates is to develop a rounded profile to minimize resistance to breaking waves.

A close relationship between unrelated organisms in which one organism benefits and the other is unaffected is known as

An individual coral animal is known as a/an

Coral bleaching results in

The symbiotic relationship between coral polyps and zooxanthellae is an example of

Intertidal zonation on a rocky beach is primarily controlled by the

Animals and algae living attached to the bottom are members of the

The base of the food chain in hydrothermal vent communities is phytoplankton.

Marine vascular flowering plants include all of the following except

The size and shape of sediment particles influences both the ______________, or amount of space between particles, and _______________ the flow of water and gases.

Bacteria are a valuable source of protein for other marine organisms.

Chemosynthetic communities are found associated with

The holdfast that attaches seaweed to rocks or shells is a root.

CLOD or Coral Lethal Orange Disease

Zooxanthellae are

The Water Planet

Earth Structure and Plate Tectonics

The Sea Floor and Its Sediments

The Physical Properties of Water

Seawater

The Atmosphere and the Oceans

Ocean Structure and Circulation

The Waves

The Tides

Coasts, Beaches, and Estuaries

The Living Ocean

The Plankton, Energy, and Food Webs

The Nekton: Swimmers of the Sea

Environmental Issues

The Oceans and Climate Disruption

Prologue: The History of Oceanography

Filters

The size and shape of sediment particles influences both the , or amount of space between particles, and _ the flow of water and gases.