Question 1

Productivity in tropical oceans is:

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. B

Question 2

Primary productivity in temperate marine systems is limited by the amount of available solar radiation.

Accepted Answer

A) True 
 B)False  False

Question 3

If 10,000 KCAL of energy were contained in the primary producers,on average how many KCAL of energy would you expect to be transferred to third-order consumers?

Accepted Answer

A) 10,000 KCAL 
B) 1000 KCAL 
C) 100 KCAL 
D) 10 KCAL 
E) 1 KCAL 
A) 10,000 KCAL 
B) 1000 KCAL 
C) 100 KCAL 
D) 10 KCAL 
E) 1 KCAL D

Question 4

The percentage of biomass regularly recycled in the euphotic zone is about:

Accepted Answer

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

Question 5

Match between columns
                        Premises: mariculture
standing stock
maximum sustainable yield
Marine Mammals Act of 1992
by-catch

Accepted Answer

The Answer of maximum catch without reducing the population of is...

Question 6

Net primary productivity is:

Accepted Answer

A) net gain in organic carbon. 
B) photosynthesis minus cellular respiration. 
C) total amount of photosynthesis. 
D) a and b are correct. 
E) a and c are correct. 
A) net gain in organic carbon. 
B) photosynthesis minus cellular respiration. 
C) total amount of photosynthesis. 
D) a and b are correct. 
E) a and c are correct.

Question 7

An overabundance of organic matter results in eutrophication.

Accepted Answer

A) True 
 B)False

Question 8

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

Accepted Answer

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

Question 9

The mass present at a given time of a population of fish is called its:

Accepted Answer

A) diversity. 
B) fish stock. 
C) maximum sustainable yield. 
D) recruitment mass. 
E) standing stock. 
A) diversity. 
B) fish stock. 
C) maximum sustainable yield. 
D) recruitment mass. 
E) standing stock.

Question 10

All of the following are effective means of regulating fisheries except:

Accepted Answer

A) Limiting the length of the fishing season. 
B) Limiting the size of the boat. 
C) Restricting the location of a legal catch. 
D) Setting catch limits. 
E) Setting gear limits. 
A) Limiting the length of the fishing season. 
B) Limiting the size of the boat. 
C) Restricting the location of a legal catch. 
D) Setting catch limits. 
E) Setting gear limits.

Question 11

Bacteria that make their own carbohydrates by obtaining energy from chemical compounds and not directly from the sun are:

Accepted Answer

A) chemoautotrophs. 
B) cyanobacteria. 
C) heterotrophs. 
D) phytoplankton. 
E) protists. 
A) chemoautotrophs. 
B) cyanobacteria. 
C) heterotrophs. 
D) phytoplankton. 
E) protists.

Question 12

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

Accepted Answer

A) True 
 B)False

Question 13

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 14

Tropical marine waters have the highest rate of primary productivity in the world's oceans.

Accepted Answer

A) True 
 B)False

Question 15

Match between columns
                        Premises: Ceratium
grouper
dolphin
fan worm
brittle star
baleen whale
diatom
krill
bacteria

Accepted Answer

The Answer of herbivore and omnivore and autotroph and detritivore is...

Question 16

The most abundant marine algae are members of the Division:

Accepted Answer

A) Bacillariophyta. 
B) Chlorophyta. 
C) Chrysophyta. 
D) Phaeophyta. 
E) Rhodophyta. 
A) Bacillariophyta. 
B) Chlorophyta. 
C) Chrysophyta. 
D) Phaeophyta. 
E) Rhodophyta.

Question 17

The relationship between cyanobacteria and fungi that results in a lichen is an example of:

Accepted Answer

A) commensalism. 
B) ectoparasitism. 
C) endoparasitism. 
D) mutualism. 
E) predation. 
A) commensalism. 
B) ectoparasitism. 
C) endoparasitism. 
D) mutualism. 
E) predation.

Question 18

Many of the organisms responsible for toxic red tides and paralytic shellfish poisoning belong to the Division:

Accepted Answer

A) Bacillariophyta. 
B) Chlorophyta. 
C) Phaeophyta. 
D) Pyrrophyta. 
E) Rhodophyta. 
A) Bacillariophyta. 
B) Chlorophyta. 
C) Phaeophyta. 
D) Pyrrophyta. 
E) Rhodophyta.

Question 19

The efficiency of trophic transfers in ecosystems is on average around:

Accepted Answer

A) 75%. 
B) 50%. 
C) 30%. 
D) 10%. 
E) 5%. 
A) 75%. 
B) 50%. 
C) 30%. 
D) 10%. 
E) 5%.

Question 20

Catches above the maximum sustainable yield:

Accepted Answer

A) can be increased to prevent overfishing. 
B) produce decreased fishing effort. 
C) result in increased populations of the target species. 
D) result in overfishing. 
E) result in underutilization of the target species. 
A) can be increased to prevent overfishing. 
B) produce decreased fishing effort. 
C) result in increased populations of the target species. 
D) result in overfishing. 
E) result in underutilization of the target species.

Productivity in tropical oceans is:

Primary productivity in temperate marine systems is limited by the amount of available solar radiation.

If 10,000 KCAL of energy were contained in the primary producers,on average how many KCAL of energy would you expect to be transferred to third-order consumers?

The percentage of biomass regularly recycled in the euphotic zone is about:

Net primary productivity is:

An overabundance of organic matter results in eutrophication.

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

The mass present at a given time of a population of fish is called its:

All of the following are effective means of regulating fisheries except:

Bacteria that make their own carbohydrates by obtaining energy from chemical compounds and not directly from the sun are:

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

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

Tropical marine waters have the highest rate of primary productivity in the world's oceans.

The most abundant marine algae are members of the Division:

The relationship between cyanobacteria and fungi that results in a lichen is an example of:

Many of the organisms responsible for toxic red tides and paralytic shellfish poisoning belong to the Division:

The efficiency of trophic transfers in ecosystems is on average around:

Catches above the maximum sustainable yield:

Introduction to Planet Earth

Plate Tectonics and the Ocean Floor

Marine Provinces

Marine Sediments

Water and Seawater

Air-Sea Interface

Ocean Circulation

Waves and Water Dynamics

Tides

The Coast: Beaches and Shoreline Processes

The Coastal Oceans

Marine Life and the Marine Environment

Animals of the Pelagic Environment

Animals of the Benthic Environment

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Exam 13: Biological Productivity and Energy Transfer

Productivity in tropical oceans is:

Primary productivity in temperate marine systems is limited by the amount of available solar radiation.

If 10,000 KCAL of energy were contained in the primary producers,on average how many KCAL of energy would you expect to be transferred to third-order consumers?

The percentage of biomass regularly recycled in the euphotic zone is about:

Net primary productivity is:

An overabundance of organic matter results in eutrophication.

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

The mass present at a given time of a population of fish is called its:

All of the following are effective means of regulating fisheries except:

Bacteria that make their own carbohydrates by obtaining energy from chemical compounds and not directly from the sun are:

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

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

Tropical marine waters have the highest rate of primary productivity in the world's oceans.

The most abundant marine algae are members of the Division:

The relationship between cyanobacteria and fungi that results in a lichen is an example of:

Many of the organisms responsible for toxic red tides and paralytic shellfish poisoning belong to the Division:

The efficiency of trophic transfers in ecosystems is on average around:

Catches above the maximum sustainable yield:

Introduction to Planet Earth

Plate Tectonics and the Ocean Floor

Marine Provinces

Marine Sediments

Water and Seawater

Air-Sea Interface

Ocean Circulation

Waves and Water Dynamics

Tides

The Coast: Beaches and Shoreline Processes

The Coastal Oceans

Marine Life and the Marine Environment

Animals of the Pelagic Environment

Animals of the Benthic Environment

Filters