Question 1

Cyanobacteria are one of only a few organisms able to use nitrogen gas to make organic matter.

Accepted Answer

A) True 
 B)False

Question 2

If baleen whales eat krill that eat diatoms, krill represents the _______ trophic level.

Accepted Answer

A)  first 
B)  second 
C)  third 
D)  fourth 
E)  fifth 
A)  first 
B)  second 
C)  third 
D)  fourth 
E)  fifth

Question 3

The total productivity of upwelling areas is greater than the total productivity of open-ocean areas.

Accepted Answer

A) True 
 B)False

Question 4

When new marine phytoplankton biomass is produced by photosynthesis, dissolved carbon dioxide is converted to

Accepted Answer

A)  carbon dioxide gas. 
B)  carbon dioxide solids. 
C)  soluble inorganic compounds. 
D)  organic carbon compounds. 
E)  None of these are correct. 
A)  carbon dioxide gas. 
B)  carbon dioxide solids. 
C)  soluble inorganic compounds. 
D)  organic carbon compounds. 
E)  None of these are correct.

Question 5

Common photosynthetic pigments include all of the following except

Accepted Answer

A)  chlorophyll. a 
B)  fucoxanthin. 
C)  fluorescence. 
D)  phycoerythrin. 
A)  chlorophyll. a 
B)  fucoxanthin. 
C)  fluorescence. 
D)  phycoerythrin.

Question 6

Krill is the common name for copepods.

Accepted Answer

A) True 
 B)False

Question 7

All phytoplankton are capable of photosynthesis.

Accepted Answer

A) True 
 B)False

Question 8

Some planktonic cyanobacteria have the ability to "fix" which of the following elements thus having a fertilizing effect on the marine environment similar to the ability of the land plants legumes?

Accepted Answer

A)  Oxygen 
B)  Helium 
C)  Hydrogen 
D)  Nitrogen 
A)  Oxygen 
B)  Helium 
C)  Hydrogen 
D)  Nitrogen

Question 9

Sargassum is the only large planktonic seaweed.

Accepted Answer

A) True 
 B)False

Question 10

In the dark-light bottle experiment, which one of the following is measured in the dark bottle?

Accepted Answer

A)  Photosynthesis. 
B)  Respiration. 
C)  Decomposition. 
D)  Photosynthesis plus respiration. 
E)  Chlorophyll concentration. 
A)  Photosynthesis. 
B)  Respiration. 
C)  Decomposition. 
D)  Photosynthesis plus respiration. 
E)  Chlorophyll concentration.

Question 11

Salt-tolerant plants include cordgrasses and mangroves.

Accepted Answer

A) True 
 B)False

Question 12

Autotrophic organisms are

Accepted Answer

A)  able to chemosynthesize. 
B)  the base of the food web. 
C)  able to photosynthesize. 
D)  All of these are correct. 
E)  None of these are correct. 
A)  able to chemosynthesize. 
B)  the base of the food web. 
C)  able to photosynthesize. 
D)  All of these are correct. 
E)  None of these are correct.

Question 13

The most abundant phytoplankton in the open ocean is the cyanobacterium Prochlorococcus.

Accepted Answer

A) True 
 B)False

Question 14

The upper boundary of the aphotic zone is determined by the depth of solar light penetration.

Accepted Answer

A) True 
 B)False

Question 15

The plankton, benthos, and nekton are subdivisions of the

Accepted Answer

A)  seafloor. 
B)  littoral. 
C)  oceanic water column. 
D)  organisms. 
E)  continental shelf. 
A)  seafloor. 
B)  littoral. 
C)  oceanic water column. 
D)  organisms. 
E)  continental shelf.

Question 16

The highest rates of productivity in temperate waters occur in

Accepted Answer

A)  spring. 
B)  winter. 
C)  summer. 
D)  fall. 
E)  Productivity is the same during all seasons. 
A)  spring. 
B)  winter. 
C)  summer. 
D)  fall. 
E)  Productivity is the same during all seasons.

Question 17

Productivity is higher at a surface convergence than surface divergence.

Accepted Answer

A) True 
 B)False

Question 18

When primary productivity is high, standing crop remains high and nearly constant.

Accepted Answer

A) True 
 B)False

Question 19

In terms of grams of carbon per square meter per day, the open-ocean environment is about as productive as

Accepted Answer

A)  prairie land. 
B)  alpine forests. 
C)  deserts. 
D)  intensively farmed fields. 
E)  tropical rain forests. 
A)  prairie land. 
B)  alpine forests. 
C)  deserts. 
D)  intensively farmed fields. 
E)  tropical rain forests.

Question 20

The coccoliths on the outside of coccolithophores are made of silica.

Accepted Answer

A) True 
 B)False

Cyanobacteria are one of only a few organisms able to use nitrogen gas to make organic matter.

If baleen whales eat krill that eat diatoms, krill represents the _______ trophic level.

The total productivity of upwelling areas is greater than the total productivity of open-ocean areas.

When new marine phytoplankton biomass is produced by photosynthesis, dissolved carbon dioxide is converted to

Common photosynthetic pigments include all of the following except

Krill is the common name for copepods.

All phytoplankton are capable of photosynthesis.

Some planktonic cyanobacteria have the ability to "fix" which of the following elements thus having a fertilizing effect on the marine environment similar to the ability of the land plants legumes?

Sargassum is the only large planktonic seaweed.

In the dark-light bottle experiment, which one of the following is measured in the dark bottle?

Salt-tolerant plants include cordgrasses and mangroves.

Autotrophic organisms are

The most abundant phytoplankton in the open ocean is the cyanobacterium Prochlorococcus.

The upper boundary of the aphotic zone is determined by the depth of solar light penetration.

The plankton, benthos, and nekton are subdivisions of the

The highest rates of productivity in temperate waters occur in

Productivity is higher at a surface convergence than surface divergence.

When primary productivity is high, standing crop remains high and nearly constant.

In terms of grams of carbon per square meter per day, the open-ocean environment is about as productive as

The coccoliths on the outside of coccolithophores are made of silica.

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

Cyanobacteria are one of only a few organisms able to use nitrogen gas to make organic matter.

If baleen whales eat krill that eat diatoms, krill represents the _______ trophic level.

The total productivity of upwelling areas is greater than the total productivity of open-ocean areas.

When new marine phytoplankton biomass is produced by photosynthesis, dissolved carbon dioxide is converted to

Common photosynthetic pigments include all of the following except

Krill is the common name for copepods.

All phytoplankton are capable of photosynthesis.

Some planktonic cyanobacteria have the ability to "fix" which of the following elements thus having a fertilizing effect on the marine environment similar to the ability of the land plants legumes?

Sargassum is the only large planktonic seaweed.

In the dark-light bottle experiment, which one of the following is measured in the dark bottle?

Salt-tolerant plants include cordgrasses and mangroves.

Autotrophic organisms are

The most abundant phytoplankton in the open ocean is the cyanobacterium Prochlorococcus.

The upper boundary of the aphotic zone is determined by the depth of solar light penetration.

The plankton, benthos, and nekton are subdivisions of the

The highest rates of productivity in temperate waters occur in

Productivity is higher at a surface convergence than surface divergence.

When primary productivity is high, standing crop remains high and nearly constant.

In terms of grams of carbon per square meter per day, the open-ocean environment is about as productive as

The coccoliths on the outside of coccolithophores are made of silica.

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