Question 1

The most common limiting nutrient for primary production in the ocean is:

Accepted Answer

A) Silicon. 
B) Oxygen. 
C) Nitrogen. 
D) Carbonate. 
E) Phosphorus. 
A) Silicon. 
B) Oxygen. 
C) Nitrogen. 
D) Carbonate. 
E) Phosphorus. C

Question 2

Zooplankton that migrate vertically:

Accepted Answer

A) Hibernate at night and feed during the day. 
B) Feed at the surface during the day,and migrate below the photic zone at night. 
C) Feed in the photic zone during the day,and migrate to the surface at night. 
D) Stay below the photic zone during the day,and feed at the surface at night. 
E) Migrate up and down but always stay below the photic zone. 
A) Hibernate at night and feed during the day. 
B) Feed at the surface during the day,and migrate below the photic zone at night. 
C) Feed in the photic zone during the day,and migrate to the surface at night. 
D) Stay below the photic zone during the day,and feed at the surface at night. 
E) Migrate up and down but always stay below the photic zone. D

Question 3

Which of these are not considered to be pelagic zooplankton?

Accepted Answer

A) Arrow worms 
B) Comb jellies 
C) Pteropods 
D) Diatoms 
E) Copepods 
A) Arrow worms 
B) Comb jellies 
C) Pteropods 
D) Diatoms 
E) Copepods D

Question 4

Which of these is not a member of the holoplankton?

Accepted Answer

A) Copepods 
B) Arrow worms 
C) Larvaceans 
D) Salps 
E) Snail larvae 
A) Copepods 
B) Arrow worms 
C) Larvaceans 
D) Salps 
E) Snail larvae

Question 5

The net phytoplankton consists mostly of:

Accepted Answer

A) Copepods. 
B) Diatoms and dinoflagellates. 
C) Nanoplankton. 
D) Cyanobacteria (blue-green algae). 
E) Nanoplankton and diatoms. 
A) Copepods. 
B) Diatoms and dinoflagellates. 
C) Nanoplankton. 
D) Cyanobacteria (blue-green algae). 
E) Nanoplankton and diatoms.

Question 6

Countershading is a form of:

Accepted Answer

A) Shading with bioluminescence. 
B) Warning coloration. 
C) Structural coloration. 
D) Protective coloration. 
E) Cryptic coloration. 
A) Shading with bioluminescence. 
B) Warning coloration. 
C) Structural coloration. 
D) Protective coloration. 
E) Cryptic coloration.

Question 7

Which of these is least likely to be seen in the epipelagic?

Accepted Answer

A) Suspension feeders 
B) Deposit feeders 
C) Primary producers 
D) First-level carnivores 
E) Second-level carnivores 
A) Suspension feeders 
B) Deposit feeders 
C) Primary producers 
D) First-level carnivores 
E) Second-level carnivores

Question 8

Which of the following adaptations is least likely to be seen in epipelagic fish?

Accepted Answer

A) Stiff fins 
B) Smooth,scaleless body 
C) Increased white muscle 
D) Grove in body for fins 
E) Eyes flush with body 
A) Stiff fins 
B) Smooth,scaleless body 
C) Increased white muscle 
D) Grove in body for fins 
E) Eyes flush with body

Question 9

Which one of these groups builds a mucus "house":

Accepted Answer

A) Copepods. 
B) Arrow worms. 
C) Larvaceans. 
D) Planktonic snails such as pteropods. 
E) Snail larvae. 
A) Copepods. 
B) Arrow worms. 
C) Larvaceans. 
D) Planktonic snails such as pteropods. 
E) Snail larvae.

Question 10

What is the relationship between dissolved organic matter (DOM)and bacteria in the epipelagic?

Accepted Answer

A) Bacteria feed on the DOM,making it available to other animals in the food chain that feed on bacteria 
B) Bacteria supply most of the DOM 
C) Bacteria feed on DOM and thus it is unavailable to other animals 
D) Bacteria cannot utilize DOM and thus feed on detritus,depleting it through most of the epipelagic 
E) Bacteria cannot utilize DOM,making it available to animals 
A) Bacteria feed on the DOM,making it available to other animals in the food chain that feed on bacteria 
B) Bacteria supply most of the DOM 
C) Bacteria feed on DOM and thus it is unavailable to other animals 
D) Bacteria cannot utilize DOM and thus feed on detritus,depleting it through most of the epipelagic 
E) Bacteria cannot utilize DOM,making it available to animals

Question 11

Where is the rate of primary production the least?

Accepted Answer

A) Coasts 
B) Upwelling along coasts 
C) In the middle of the current gyres 
D) Around Antarctica in the summer 
E) Along the Equator 
A) Coasts 
B) Upwelling along coasts 
C) In the middle of the current gyres 
D) Around Antarctica in the summer 
E) Along the Equator

Question 12

Most zooplankton feed on:

Accepted Answer

A) Strictly phytoplankton. 
B) Strictly zooplankton. 
C) Mostly nanoplankton. 
D) Mostly zooplankton. 
E) Mostly nanoplankton and phytoplankton. 
A) Strictly phytoplankton. 
B) Strictly zooplankton. 
C) Mostly nanoplankton. 
D) Mostly zooplankton. 
E) Mostly nanoplankton and phytoplankton.

Question 13

In order to reduce global warming and increase the absorption of carbon dioxide by phytoplankton it has been proposed to add which of these nutrients to the Southern Ocean in order to stimulate phytoplankton growth?

Accepted Answer

A) Carbonate 
B) Calcium 
C) Iron 
D) Sulfate 
E) Copper 
A) Carbonate 
B) Calcium 
C) Iron 
D) Sulfate 
E) Copper

Question 14

Typically the most abundant group in the zooplankton are:

Accepted Answer

A) Larvaceans. 
B) Isopods. 
C) Fish larvae. 
D) Nanoplankton. 
E) Copepods. 
A) Larvaceans. 
B) Isopods. 
C) Fish larvae. 
D) Nanoplankton. 
E) Copepods.

Question 15

Epipelagic fish have all of the following in order to reduce drag and increase swimming efficiency except:

Accepted Answer

A) They secrete mucus. 
B) They are sleek. 
C) They have long spines. 
D) They have small scales. 
A) They secrete mucus. 
B) They are sleek. 
C) They have long spines. 
D) They have small scales.

Question 16

The epipelagic is divided into two components: the oceanic waters and the:

Accepted Answer

A) Abyssal zone. 
B) Neritic zone. 
C) Pelagic realm. 
D) Upper photic zone. 
E) Subtidal zone. 
A) Abyssal zone. 
B) Neritic zone. 
C) Pelagic realm. 
D) Upper photic zone. 
E) Subtidal zone.

Question 17

The storage of lipids within the body is an adaptation in plankton since lipids:

Accepted Answer

A) Make cells heavier. 
B) Increase body density. 
C) Contain air pockets so they help in buoyancy. 
D) Contain a larger amount of energy. 
E) Are less dense than water and thus aid in buoyancy. 
A) Make cells heavier. 
B) Increase body density. 
C) Contain air pockets so they help in buoyancy. 
D) Contain a larger amount of energy. 
E) Are less dense than water and thus aid in buoyancy.

Question 18

Most of the primary production carried out in the open ocean is performed by:

Accepted Answer

A) Seaweeds. 
B) Kelps. 
C) Phytoplankton. 
D) Seagrasses. 
E) Zooxanthellae. 
A) Seaweeds. 
B) Kelps. 
C) Phytoplankton. 
D) Seagrasses. 
E) Zooxanthellae.

Question 19

The Southern Oscillation was given the nickname "El Nino" because:

Accepted Answer

A) That is the term for changes between two pressure systems. 
B) It is a reference to the wind speed over the Pacific Ocean. 
C) It describes the relationship between sea-surface and high-altitude pressures. 
D) It refers to the tidal differences between the Indian and Pacific Oceans. 
E) It indicates the reversal of the coastal upwelling beginning in late December. 
A) That is the term for changes between two pressure systems. 
B) It is a reference to the wind speed over the Pacific Ocean. 
C) It describes the relationship between sea-surface and high-altitude pressures. 
D) It refers to the tidal differences between the Indian and Pacific Oceans. 
E) It indicates the reversal of the coastal upwelling beginning in late December.

Question 20

The rete mirabile found in some fishes is involved in:

Accepted Answer

A) Increasing speed. 
B) Decreasing buoyancy. 
C) Digesting food. 
D) Increasing buoyancy. 
E) Conserving body heat. 
A) Increasing speed. 
B) Decreasing buoyancy. 
C) Digesting food. 
D) Increasing buoyancy. 
E) Conserving body heat.

The most common limiting nutrient for primary production in the ocean is:

Zooplankton that migrate vertically:

Which of these are not considered to be pelagic zooplankton?

Which of these is not a member of the holoplankton?

The net phytoplankton consists mostly of:

Countershading is a form of:

Which of these is least likely to be seen in the epipelagic?

Which of the following adaptations is least likely to be seen in epipelagic fish?

Which one of these groups builds a mucus "house":

What is the relationship between dissolved organic matter (DOM)and bacteria in the epipelagic?

Where is the rate of primary production the least?

Most zooplankton feed on:

In order to reduce global warming and increase the absorption of carbon dioxide by phytoplankton it has been proposed to add which of these nutrients to the Southern Ocean in order to stimulate phytoplankton growth?

Typically the most abundant group in the zooplankton are:

Epipelagic fish have all of the following in order to reduce drag and increase swimming efficiency except:

The epipelagic is divided into two components: the oceanic waters and the:

The storage of lipids within the body is an adaptation in plankton since lipids:

Most of the primary production carried out in the open ocean is performed by:

The Southern Oscillation was given the nickname "El Nino" because:

The rete mirabile found in some fishes is involved 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

Between the Tides

Estuaries: Where Rivers Meet the Sea

Life on the Continental Shelf

Coral Reefs

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 15: Life Near the Surface

The most common limiting nutrient for primary production in the ocean is:

Zooplankton that migrate vertically:

Which of these are not considered to be pelagic zooplankton?

Which of these is not a member of the holoplankton?

The net phytoplankton consists mostly of:

Countershading is a form of:

Which of these is least likely to be seen in the epipelagic?

Which of the following adaptations is least likely to be seen in epipelagic fish?

Which one of these groups builds a mucus "house":

What is the relationship between dissolved organic matter (DOM)and bacteria in the epipelagic?

Where is the rate of primary production the least?

Most zooplankton feed on:

In order to reduce global warming and increase the absorption of carbon dioxide by phytoplankton it has been proposed to add which of these nutrients to the Southern Ocean in order to stimulate phytoplankton growth?

Typically the most abundant group in the zooplankton are:

Epipelagic fish have all of the following in order to reduce drag and increase swimming efficiency except:

The epipelagic is divided into two components: the oceanic waters and the:

The storage of lipids within the body is an adaptation in plankton since lipids:

Most of the primary production carried out in the open ocean is performed by:

The Southern Oscillation was given the nickname "El Nino" because:

The rete mirabile found in some fishes is involved 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

Between the Tides

Estuaries: Where Rivers Meet the Sea

Life on the Continental Shelf

Coral Reefs

The Ocean Depths

Resources From the Sea

The Impact of Humans on the Marine Environment

The Oceans and Human Affairs

Filters