Question 1

In HNLC regions, phytoplankton blooms are typically most limited by

Accepted Answer

A)  iron. 
B)  nitrogen. 
C)  light. 
D)  grazing. 
E)  phosphorus. 
A)  iron. 
B)  nitrogen. 
C)  light. 
D)  grazing. 
E)  phosphorus.

Question 2

The richest fishing areas of the world are mostly located in waters

Accepted Answer

A)  where coral reefs are common. 
B)  where equatorial upwelling takes place. 
C)  in open waters far from coasts. 
D)  where coastal upwelling takes place. 
E)  around Antarctica and in the Arctic. 
A)  where coral reefs are common. 
B)  where equatorial upwelling takes place. 
C)  in open waters far from coasts. 
D)  where coastal upwelling takes place. 
E)  around Antarctica and in the Arctic.

Question 3

Upwelling areas are more productive than oceanic areas because _______ in upwellings.

Accepted Answer

A)  organic matter is more concentrated 
B)  food chains are shorter 
C)  there are more nutrients 
D)  All of these are correct. 
E)  None of these are correct. 
A)  organic matter is more concentrated 
B)  food chains are shorter 
C)  there are more nutrients 
D)  All of these are correct. 
E)  None of these are correct.

Question 4

The nutrient-poor open ocean tends to support a(n) __________________ biological pump compared to coastal and upwelling regions.

Accepted Answer

A)  efficient 
B)  inefficient 
C)  complex 
D)  ballasted 
A)  efficient 
B)  inefficient 
C)  complex 
D)  ballasted

Question 5

As organic material sinks through the ocean, much of it is remineralized by

Accepted Answer

A)  inorganic chemical reactions. 
B)  increasing pH. 
C)  viruses. 
D)  heterotrophic bacteria. 
A)  inorganic chemical reactions. 
B)  increasing pH. 
C)  viruses. 
D)  heterotrophic bacteria.

Question 6

At high latitudes, phytoplankton blooms are typically most limited by

Accepted Answer

A)  light. 
B)  temperature. 
C)  grazing. 
D)  nutrients. 
A)  light. 
B)  temperature. 
C)  grazing. 
D)  nutrients.

Question 7

Productivity tends to be higher in the open ocean than the coastal ocean.

Accepted Answer

A) True 
 B)False

Question 8

Which compound does not serve as a pigment in phytoplankton?

Accepted Answer

A)  Chlorophyll c 
B)  Chlorophyll a 
C)  Fucoxanthin 
D)  Hemoglobin 
E)  Phycoerythrin 
A)  Chlorophyll c 
B)  Chlorophyll a 
C)  Fucoxanthin 
D)  Hemoglobin 
E)  Phycoerythrin

Question 9

Measurements of chlorophyll a fluorescence are made at sea to determine the biomass of

Accepted Answer

A)  meroplankton. 
B)  phytoplankton. 
C)  holoplankton. 
D)  meroplankton and holoplankton. 
E)  meroplankton, phytoplankton, and holoplankton. 
A)  meroplankton. 
B)  phytoplankton. 
C)  holoplankton. 
D)  meroplankton and holoplankton. 
E)  meroplankton, phytoplankton, and holoplankton.

Question 10

As a general rule, total biomass _______, size of individuals _____, and number of individuals ______ as you move up a trophic pyramid.

Accepted Answer

A)  increases; decreases; decreases 
B)  decreases; increases; decreases 
C)  increases; decreases; increases 
D)  decreases; decreases; increases 
E)  increases; increases; increases 
A)  increases; decreases; decreases 
B)  decreases; increases; decreases 
C)  increases; decreases; increases 
D)  decreases; decreases; increases 
E)  increases; increases; increases

Question 11

Primary productivity is best described as

Accepted Answer

A)  population. 
B)  standing crop. 
C)  life expectancy. 
D)  rate of birth minus rate of death. 
E)  rate of production of organic carbon. 
A)  population. 
B)  standing crop. 
C)  life expectancy. 
D)  rate of birth minus rate of death. 
E)  rate of production of organic carbon.

Question 12

Meroplankton spend only a part of their lifecycle in the water column. Common examples include

Accepted Answer

A)  copepods. 
B)  krill. 
C)  sea star larvae. 
D)  salps. 
A)  copepods. 
B)  krill. 
C)  sea star larvae. 
D)  salps.

Question 13

Viral abundance decreases with depth and distance from shore.

Accepted Answer

A) True 
 B)False

Question 14

Phytoplankton use all of the following as part of the cell structure except

Accepted Answer

A)  cellulose. 
B)  silica. 
C)  calcium carbonate. 
D)  iron. 
A)  cellulose. 
B)  silica. 
C)  calcium carbonate. 
D)  iron.

Question 15

In a simple food chain with 10% efficiency, a net primary production rate at the first trophic level is 10,000 units. How many units are available to the fourth trophic level?

Accepted Answer

A)  1000 
B)  100 
C)  10 
D)  1 
E)  0.1 
A)  1000 
B)  100 
C)  10 
D)  1 
E)  0.1

Question 16

Cyanobaceria such as Trichodesmium play an important role in the oceans because they fix nitrogen gas.

Accepted Answer

A) True 
 B)False

Question 17

The Redfield Ratio is

Accepted Answer

A)  N:C:P 106:16:1. 
B)  P:C:N 106:16:1. 
C)  C:P:N 106:16:1. 
D)  C:N:P 106:16:1. 
E)  P:N:C 106:16:1. 
A)  N:C:P 106:16:1. 
B)  P:C:N 106:16:1. 
C)  C:P:N 106:16:1. 
D)  C:N:P 106:16:1. 
E)  P:N:C 106:16:1.

Question 18

At mid-latitudes in spring, a phytoplankton bloom is often preceded by

Accepted Answer

A)  vertical mixing exceeding the critical depth. 
B)  vertical mixing becoming shallower than the critical depth. 
C)  the critical depth being equal to the compensation depth. 
D)  the critical depth becoming shallower than the thermocline. 
A)  vertical mixing exceeding the critical depth. 
B)  vertical mixing becoming shallower than the critical depth. 
C)  the critical depth being equal to the compensation depth. 
D)  the critical depth becoming shallower than the thermocline.

Question 19

Areas of divergence promote higher rates of primary production.

Accepted Answer

A) True 
 B)False

Question 20

Which is not a member of the zooplankton?

Accepted Answer

A)  A copepod 
B)  An arrowworm 
C)  A fish egg 
D)  A diatom 
E)  A jellyfish 
A)  A copepod 
B)  An arrowworm 
C)  A fish egg 
D)  A diatom 
E)  A jellyfish

In HNLC regions, phytoplankton blooms are typically most limited by

The richest fishing areas of the world are mostly located in waters

Upwelling areas are more productive than oceanic areas because _______ in upwellings.

The nutrient-poor open ocean tends to support a(n) __________________ biological pump compared to coastal and upwelling regions.

As organic material sinks through the ocean, much of it is remineralized by

At high latitudes, phytoplankton blooms are typically most limited by

Productivity tends to be higher in the open ocean than the coastal ocean.

Which compound does not serve as a pigment in phytoplankton?

Measurements of chlorophyll a fluorescence are made at sea to determine the biomass of

As a general rule, total biomass _____, size of individuals _, and number of individuals ____ as you move up a trophic pyramid.

Primary productivity is best described as

Meroplankton spend only a part of their lifecycle in the water column. Common examples include

Viral abundance decreases with depth and distance from shore.

Phytoplankton use all of the following as part of the cell structure except

In a simple food chain with 10% efficiency, a net primary production rate at the first trophic level is 10,000 units. How many units are available to the fourth trophic level?

Cyanobaceria such as Trichodesmium play an important role in the oceans because they fix nitrogen gas.

The Redfield Ratio is

At mid-latitudes in spring, a phytoplankton bloom is often preceded by

Areas of divergence promote higher rates of primary production.

Which is not a member of the zooplankton?

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 Nekton: Swimmers of the Sea

The Benthos: Living on the Sea Floor

Environmental Issues

The Oceans and Climate Disruption

Prologue: The History of Oceanography

Filters

Exam 12: The Plankton, Energy, and Food Webs

In HNLC regions, phytoplankton blooms are typically most limited by

The richest fishing areas of the world are mostly located in waters

Upwelling areas are more productive than oceanic areas because _______ in upwellings.

The nutrient-poor open ocean tends to support a(n) __________________ biological pump compared to coastal and upwelling regions.

As organic material sinks through the ocean, much of it is remineralized by

At high latitudes, phytoplankton blooms are typically most limited by

Productivity tends to be higher in the open ocean than the coastal ocean.

Which compound does not serve as a pigment in phytoplankton?

Measurements of chlorophyll a fluorescence are made at sea to determine the biomass of

As a general rule, total biomass _______, size of individuals _____, and number of individuals ______ as you move up a trophic pyramid.

Primary productivity is best described as

Meroplankton spend only a part of their lifecycle in the water column. Common examples include

Viral abundance decreases with depth and distance from shore.

Phytoplankton use all of the following as part of the cell structure except

In a simple food chain with 10% efficiency, a net primary production rate at the first trophic level is 10,000 units. How many units are available to the fourth trophic level?

Cyanobaceria such as Trichodesmium play an important role in the oceans because they fix nitrogen gas.

The Redfield Ratio is

At mid-latitudes in spring, a phytoplankton bloom is often preceded by

Areas of divergence promote higher rates of primary production.

Which is not a member of the zooplankton?

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 Nekton: Swimmers of the Sea

The Benthos: Living on the Sea Floor

Environmental Issues

The Oceans and Climate Disruption

Prologue: The History of Oceanography

Filters

As a general rule, total biomass _____, size of individuals _, and number of individuals ____ as you move up a trophic pyramid.