Question 1

Important marine autotrophs that have silica incorporated into their cell walls are:

Accepted Answer

A) coccolithophorids. 
B) cyanobacteria. 
C) diatoms. 
D) dinoflagellates. 
E) radiolarians. 
A) coccolithophorids. 
B) cyanobacteria. 
C) diatoms. 
D) dinoflagellates. 
E) radiolarians.

Question 2

The percentage of euphotic zone biomass that reaches the deep ocean floor is approximately:

Accepted Answer

A) 1%. 
B) 10%. 
C) 30%. 
D) 50%. 
E) 90%. 
A) 1%. 
B) 10%. 
C) 30%. 
D) 50%. 
E) 90%.

Question 3

Marine algae that grow close to the limits of light penetration have accessory photosynthetic pigments that absorb high energy, short-wavelength light in the blue region of the electromagnetic spectrum.

Accepted Answer

A) True 
 B)False

Question 4

Consumers, producers, and decomposers are all examples of trophic levels within a food chain or food web.

Accepted Answer

A) True 
 B)False

Question 5

In primary production:

Accepted Answer

A) carbon dioxide is released into the water. 
B) oxygen is utilized by plants. 
C) oxygen utilized by animals is less than the oxygen consumed by autotrophs. 
D) proteins are made by animals. 
E) there is a net gain in organic carbon by organisms. 
A) carbon dioxide is released into the water. 
B) oxygen is utilized by plants. 
C) oxygen utilized by animals is less than the oxygen consumed by autotrophs. 
D) proteins are made by animals. 
E) there is a net gain in organic carbon by organisms.

Question 6

-Tropical oceans are generally characterized by low net primary productivity. What are three environments that are exceptions to this and what factors contribute to their higher productivity?

Accepted Answer

Three environments that are exceptions t

Question 7

The products of photosynthesis are carbon dioxide (CO₂)and water (H₂O).

Accepted Answer

A) True 
 B)False

Question 8

The nutrients that tend to limit photosynthesis in marine environments include:

Accepted Answer

A) carbon dioxide. 
B) nitrogen. 
C) phosphorus. 
D) A and B are correct. 
E) B and C are correct. 
A) carbon dioxide. 
B) nitrogen. 
C) phosphorus. 
D) A and B are correct. 
E) B and C are correct.

Question 9

Match the term or phrase with its best descriptor. Use each answer once, more than once, or not at all.
-by-catch

Accepted Answer

A) catch limit 
B) dolphins and other mammal protection 
C) farming of commercial fish and shellfish 
D) catch size that reduces the population of target species 
E) incidental catch
F)turtle exclusion devices (TEDs)
G)maximum catch without reducing the population of target species
H)available biomass of a target species 
A) catch limit 
B) dolphins and other mammal protection 
C) farming of commercial fish and shellfish 
D) catch size that reduces the population of target species 
E) incidental catch
F)turtle exclusion devices (TEDs)
G)maximum catch without reducing the population of target species
H)available biomass of a target species

Question 10

Match the organism with its correct descriptor of energy use or trophic level. Use each choice once, more than once, or not at all.
-Sargassum

Accepted Answer

A) decomposer 
B) consumer 
C) producer 
A) decomposer 
B) consumer 
C) producer

Question 11

Productivity in tropical oceans is generally:

Accepted Answer

A) light-limited. 
B) nutrient-limited. 
C) oxygen-limited. 
D) light and nutrient-limited. 
E) nutrient and oxygen-limited. 
A) light-limited. 
B) nutrient-limited. 
C) oxygen-limited. 
D) light and nutrient-limited. 
E) nutrient and oxygen-limited.

Question 12

Energy flow in photosynthetic marine ecosystems is unidirectional in contrast to nutrients, which cycle through ecosystems.

Accepted Answer

A) True 
 B)False

Question 13

Bacteria that manufacture carbohydrates in the absence of solar energy are autotrophs.

Accepted Answer

A) True 
 B)False

Question 14

How can overfishing of target species lead to significant changes in marine ecosystems?

Accepted Answer

Overfishing of target species can lead t

Question 15

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option that does not fit the pattern.

Accepted Answer

A)  Anthophyta 
B)  Chlorophyta 
C)  Chrysophyta 
D)  Phaeophyta 
E)  Pyrrophyta 
A)  Anthophyta 
B)  Chlorophyta 
C)  Chrysophyta 
D)  Phaeophyta 
E)  Pyrrophyta

Question 16

Although primary productivity in tropical areas is generally low, which of the following tropical locations have unusually high primary productivity rates?

Accepted Answer

A) equatorial upwelling zones 
B) coastal upwelling zones 
C) coral reefs 
D) dead zones 
E) All of the above tropical areas have relatively high primary productivity. 
A) equatorial upwelling zones 
B) coastal upwelling zones 
C) coral reefs 
D) dead zones 
E) All of the above tropical areas have relatively high primary productivity.

Question 17

Diatoms, important producers in the epipelagic open ocean, are members of the Division:

Accepted Answer

A) Angiospermae. 
B) Chrysophyta. 
C) Chlorophyta. 
D) Haptophyta. 
E) Pyrrophyta. 
A) Angiospermae. 
B) Chrysophyta. 
C) Chlorophyta. 
D) Haptophyta. 
E) Pyrrophyta.

Question 18

The maximum sustainable yield (MSY)is best defined as:

Accepted Answer

A) annual harvest that will balance natural mortality and predation. 
B) largest catch that can be taken without overfishing. 
C) largest catch that will cover the minimum cost of fishing. 
D) maximum fishing effort allowed after overfishing occurs. 
E) minimum catch that will still allow the population to increase. 
A) annual harvest that will balance natural mortality and predation. 
B) largest catch that can be taken without overfishing. 
C) largest catch that will cover the minimum cost of fishing. 
D) maximum fishing effort allowed after overfishing occurs. 
E) minimum catch that will still allow the population to increase.

Question 19

Match the organism or definition with the correct description of its food preference. Use each choice once, more than once, or not at all.
-diatom

Accepted Answer

A) decomposer 
B) detritivore 
C) herbivore 
D) autotroph 
E) omnivore
F)carnivore 
A) decomposer 
B) detritivore 
C) herbivore 
D) autotroph 
E) omnivore
F)carnivore

Question 20

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option that does not fit the pattern.

Accepted Answer

A)  autotrophic 
B)  carnivorous feeding 
C)  deposit feeding 
D)  filter feeding 
E)  suspension feeding 
A)  autotrophic 
B)  carnivorous feeding 
C)  deposit feeding 
D)  filter feeding 
E)  suspension feeding

Important marine autotrophs that have silica incorporated into their cell walls are:

The percentage of euphotic zone biomass that reaches the deep ocean floor is approximately:

Marine algae that grow close to the limits of light penetration have accessory photosynthetic pigments that absorb high energy, short-wavelength light in the blue region of the electromagnetic spectrum.

Consumers, producers, and decomposers are all examples of trophic levels within a food chain or food web.

In primary production:

-Tropical oceans are generally characterized by low net primary productivity. What are three environments that are exceptions to this and what factors contribute to their higher productivity?

The products of photosynthesis are carbon dioxide (CO₂)and water (H₂O).

The nutrients that tend to limit photosynthesis in marine environments include:

Match the term or phrase with its best descriptor. Use each answer once, more than once, or not at all. -by-catch

Match the organism with its correct descriptor of energy use or trophic level. Use each choice once, more than once, or not at all. -Sargassum

Productivity in tropical oceans is generally:

Energy flow in photosynthetic marine ecosystems is unidirectional in contrast to nutrients, which cycle through ecosystems.

Bacteria that manufacture carbohydrates in the absence of solar energy are autotrophs.

How can overfishing of target species lead to significant changes in marine ecosystems?

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option that does not fit the pattern.

Although primary productivity in tropical areas is generally low, which of the following tropical locations have unusually high primary productivity rates?

Diatoms, important producers in the epipelagic open ocean, are members of the Division:

The maximum sustainable yield (MSY)is best defined as:

Match the organism or definition with the correct description of its food preference. Use each choice once, more than once, or not at all. -diatom

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option that does not fit the pattern.

Introduction to Planet Earth

Plate Tectonics and the Ocean Floor

Marine Provinces

Marine Sediments

Water and Seawater

Air-Sea Interaction

Ocean Circulation

Waves and Water Dynamics

Tides

The Coast: Beaches and Shoreline Processes

The Coastal Ocean

Marine Life and the Marine Environment

Animals of the Pelagic Environment

Animals of the Benthic Environment

The Oceans and Climate Change

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Exam 13: Biological Productivity and Energy Transfer

Important marine autotrophs that have silica incorporated into their cell walls are:

The percentage of euphotic zone biomass that reaches the deep ocean floor is approximately:

Marine algae that grow close to the limits of light penetration have accessory photosynthetic pigments that absorb high energy, short-wavelength light in the blue region of the electromagnetic spectrum.

Consumers, producers, and decomposers are all examples of trophic levels within a food chain or food web.

In primary production:

-Tropical oceans are generally characterized by low net primary productivity. What are three environments that are exceptions to this and what factors contribute to their higher productivity?

The products of photosynthesis are carbon dioxide (CO₂)and water (H₂O).

The nutrients that tend to limit photosynthesis in marine environments include:

Match the term or phrase with its best descriptor. Use each answer once, more than once, or not at all. -by-catch

Match the organism with its correct descriptor of energy use or trophic level. Use each choice once, more than once, or not at all. -Sargassum

Productivity in tropical oceans is generally:

Energy flow in photosynthetic marine ecosystems is unidirectional in contrast to nutrients, which cycle through ecosystems.

Bacteria that manufacture carbohydrates in the absence of solar energy are autotrophs.

How can overfishing of target species lead to significant changes in marine ecosystems?

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option that does not fit the pattern.

Although primary productivity in tropical areas is generally low, which of the following tropical locations have unusually high primary productivity rates?

Diatoms, important producers in the epipelagic open ocean, are members of the Division:

The maximum sustainable yield (MSY)is best defined as:

Match the organism or definition with the correct description of its food preference. Use each choice once, more than once, or not at all. -diatom

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option that does not fit the pattern.

Introduction to Planet Earth

Plate Tectonics and the Ocean Floor

Marine Provinces

Marine Sediments

Water and Seawater

Air-Sea Interaction

Ocean Circulation

Waves and Water Dynamics

Tides

The Coast: Beaches and Shoreline Processes

The Coastal Ocean

Marine Life and the Marine Environment

Animals of the Pelagic Environment

Animals of the Benthic Environment

The Oceans and Climate Change

Filters