Question 1

A food web is

Accepted Answer

A)  a net for trapping marine organisms. 
B)  a plan of interactive food chains and energy. 
C)  an inverse trophic pyramid. 
D)  used only with herring life histories. 
E)  a diagram of an organisms's life history. 
A)  a net for trapping marine organisms. 
B)  a plan of interactive food chains and energy. 
C)  an inverse trophic pyramid. 
D)  used only with herring life histories. 
E)  a diagram of an organisms's life history. B

Question 2

Phytoplankton biomass can be measured by satellite.

Accepted Answer

A) True 
 B)False  True

Question 3

Which of the following is not necessary for photosynthesis?

Accepted Answer

A)  Light 
B)  Chlorophyll 
C)  Oxygen 
D)  Water 
E)  Carbon dioxide 
A)  Light 
B)  Chlorophyll 
C)  Oxygen 
D)  Water 
E)  Carbon dioxide C

Question 4

Rates of primary productivity in the open ocean are about the same as

Accepted Answer

A)  rainforests. 
B)  deserts and grasslands. 
C)  intensive agriculture regions. 
D)  pastures. 
A)  rainforests. 
B)  deserts and grasslands. 
C)  intensive agriculture regions. 
D)  pastures.

Question 5

DOM or Dissolved Organic Matter is largely unused by other organisms.

Accepted Answer

A) True 
 B)False

Question 6

Which organisms are members of the holoplankton?

Accepted Answer

A)  Foraminaferans 
B)  Pteropods 
C)  Comb jellies 
D)  All of these are correct. 
E)  None of these are correct. 
A)  Foraminaferans 
B)  Pteropods 
C)  Comb jellies 
D)  All of these are correct. 
E)  None of these are correct.

Question 7

Organisms that float, but cannot swim against the tides and waves, are known as

Accepted Answer

A)  photon. 
B)  aphoton. 
C)  plankton. 
D)  nekton. 
E)  benthos. 
A)  photon. 
B)  aphoton. 
C)  plankton. 
D)  nekton. 
E)  benthos.

Question 8

If the rate of uptake of dissolved inorganic carbon by phytoplankton is measured, the rate of production of organic matter can be calculated.

Accepted Answer

A) True 
 B)False

Question 9

Viral abundance is strongly correlated with plankton biomass.

Accepted Answer

A) True 
 B)False

Question 10

Populations of zooplankton can

Accepted Answer

A)  accumulate at water-layer density boundaries. 
B)  move toward the sea surface at night. 
C)  reflect sound waves. 
D)  accumulate at water-layer density boundaries and reflect sound waves. 
E)  accumulate at water-layer density boundaries, move toward the sea surface at night, and reflect sound waves. 
A)  accumulate at water-layer density boundaries. 
B)  move toward the sea surface at night. 
C)  reflect sound waves. 
D)  accumulate at water-layer density boundaries and reflect sound waves. 
E)  accumulate at water-layer density boundaries, move toward the sea surface at night, and reflect sound waves.

Question 11

The dominant phytoplankton in the open ocean are members of the picoplankton.

Accepted Answer

A) True 
 B)False

Question 12

At temperate latitudes, a stable water column with a pycnocline near the surface will _______ primary production in the spring and ________ primary production in late summer.

Accepted Answer

A)  decrease; increase 
B)  increase; increase 
C)  increase; decrease 
D)  decrease; decrease 
E)  None of these are correct; both will be moderately productive. 
A)  decrease; increase 
B)  increase; increase 
C)  increase; decrease 
D)  decrease; decrease 
E)  None of these are correct; both will be moderately productive.

Question 13

Archaea are found only in physically extreme environments such as hydrothermal vents.

Accepted Answer

A) True 
 B)False

Question 14

Net primary production equals gross primary production minus the respiration requirements of plants or phytoplankton.

Accepted Answer

A) True 
 B)False

Question 15

Gross primary production is the rate of production of organic material by photosynthesis required for both the respiration of the plants or algae and the production of new material.

Accepted Answer

A) True 
 B)False

Question 16

The vast open ocean is dominated by picoplankton that are efficiently grazed by

Accepted Answer

A)  whales. 
B)  heterotrophic dinoflagellates. 
C)  ciliates and tintinnids. 
D)  copepods. 
A)  whales. 
B)  heterotrophic dinoflagellates. 
C)  ciliates and tintinnids. 
D)  copepods.

Question 17

All harmful algal blooms are caused by dinoflagellates.

Accepted Answer

A) True 
 B)False

Question 18

When centric diatoms reproduce by simple cell division, the two new daughter cells are

Accepted Answer

A)  both smaller than the parent cell. 
B)  both the same size as the parent cell. 
C)  both larger than the parent cell. 
D)  of unequal size. 
E)  None of these are correct; centric diatoms do not reproduce in this way. 
A)  both smaller than the parent cell. 
B)  both the same size as the parent cell. 
C)  both larger than the parent cell. 
D)  of unequal size. 
E)  None of these are correct; centric diatoms do not reproduce in this way.

Question 19

Dinoflagellates and coccolithophores belong to the

Accepted Answer

A)  phytoplankton. 
B)  zooplankton. 
C)  benthos. 
D)  nekton. 
E)  decomposers. 
A)  phytoplankton. 
B)  zooplankton. 
C)  benthos. 
D)  nekton. 
E)  decomposers.

Question 20

Mineral ballasting allows organic-rich fecal pellets to sink faster.

Accepted Answer

A) True 
 B)False

A food web is

Phytoplankton biomass can be measured by satellite.

Which of the following is not necessary for photosynthesis?

Rates of primary productivity in the open ocean are about the same as

DOM or Dissolved Organic Matter is largely unused by other organisms.

Which organisms are members of the holoplankton?

Organisms that float, but cannot swim against the tides and waves, are known as

If the rate of uptake of dissolved inorganic carbon by phytoplankton is measured, the rate of production of organic matter can be calculated.

Viral abundance is strongly correlated with plankton biomass.

Populations of zooplankton can

The dominant phytoplankton in the open ocean are members of the picoplankton.

At temperate latitudes, a stable water column with a pycnocline near the surface will _ primary production in the spring and __ primary production in late summer.

Archaea are found only in physically extreme environments such as hydrothermal vents.

Net primary production equals gross primary production minus the respiration requirements of plants or phytoplankton.

Gross primary production is the rate of production of organic material by photosynthesis required for both the respiration of the plants or algae and the production of new material.

The vast open ocean is dominated by picoplankton that are efficiently grazed by

All harmful algal blooms are caused by dinoflagellates.

When centric diatoms reproduce by simple cell division, the two new daughter cells are

Dinoflagellates and coccolithophores belong to the

Mineral ballasting allows organic-rich fecal pellets to sink faster.

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

A food web is

Phytoplankton biomass can be measured by satellite.

Which of the following is not necessary for photosynthesis?

Rates of primary productivity in the open ocean are about the same as

DOM or Dissolved Organic Matter is largely unused by other organisms.

Which organisms are members of the holoplankton?

Organisms that float, but cannot swim against the tides and waves, are known as

If the rate of uptake of dissolved inorganic carbon by phytoplankton is measured, the rate of production of organic matter can be calculated.

Viral abundance is strongly correlated with plankton biomass.

Populations of zooplankton can

The dominant phytoplankton in the open ocean are members of the picoplankton.

At temperate latitudes, a stable water column with a pycnocline near the surface will _______ primary production in the spring and ________ primary production in late summer.

Archaea are found only in physically extreme environments such as hydrothermal vents.

Net primary production equals gross primary production minus the respiration requirements of plants or phytoplankton.

Gross primary production is the rate of production of organic material by photosynthesis required for both the respiration of the plants or algae and the production of new material.

The vast open ocean is dominated by picoplankton that are efficiently grazed by

All harmful algal blooms are caused by dinoflagellates.

When centric diatoms reproduce by simple cell division, the two new daughter cells are

Dinoflagellates and coccolithophores belong to the

Mineral ballasting allows organic-rich fecal pellets to sink faster.

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

At temperate latitudes, a stable water column with a pycnocline near the surface will _ primary production in the spring and __ primary production in late summer.