Question 1

More than half of the animal species, marine and terrestrial, are not considered to be free-living.

Accepted Answer

A) True 
 B)False  True

Question 2

What do most deep water consumers depend on for survival?

Accepted Answer

A)  The productivity of the water column above 
B)  Chemosynthetic productivity 
C)  The deep scattering layer of nutrients 
D)  Rift communities 
A)  The productivity of the water column above 
B)  Chemosynthetic productivity 
C)  The deep scattering layer of nutrients 
D)  Rift communities A

Question 3

Which is not a characteristic of deep water animals?

Accepted Answer

A)  Deep water organisms tend to move slowly. 
B)  Deep water organisms require little food to survive. 
C)  Deep water organisms tend to have a long life span. 
D)  Deep water organisms have a high metabolic rate. 
A)  Deep water organisms tend to move slowly. 
B)  Deep water organisms require little food to survive. 
C)  Deep water organisms tend to have a long life span. 
D)  Deep water organisms have a high metabolic rate. D

Question 4

What is the significance of the coral reefs of the Southern Line Islands?

Accepted Answer

A)  they represent the southernmost tropical reefs 
B)  they are like coral reefs before the impact of humans 
C)  they are highly impacted by humans 
D)  they have few fish and no top predators 
A)  they represent the southernmost tropical reefs 
B)  they are like coral reefs before the impact of humans 
C)  they are highly impacted by humans 
D)  they have few fish and no top predators

Question 5

What happens to climax communities after a disruption? How do these communities re-establish themselves after a disruption like a tropical storm? What is this process called?

Accepted Answer

Answer should include:
•	Succession is t

Question 6

What is a community?

Accepted Answer

A)  A group of organisms of the same species 
B)  A group of interacting organisms of different species 
C)  The number of different species in an area 
D)  The largest marine ecosystem 
A)  A group of organisms of the same species 
B)  A group of interacting organisms of different species 
C)  The number of different species in an area 
D)  The largest marine ecosystem

Question 7

Deep scattering layers are best developed in regions with high surface activity.

Accepted Answer

A) True 
 B)False

Question 8

What challenges are faced by coral reefs today? What is the advantage of living in the tropical ocean which contains few nutrients? Hint: include reference to the National Geographic segment about the Southern Line Islands

Accepted Answer

Answer should include:
•	Reference to th

Question 9

Where is there no deep scattering layer present?

Accepted Answer

A)  Temperate oceans 
B)  Tropical oceans 
C)  Arctic oceans 
D)  All oceans have a deep scattering layer 
A)  Temperate oceans 
B)  Tropical oceans 
C)  Arctic oceans 
D)  All oceans have a deep scattering layer

Question 10

What provides the raw material for large and complex food webs within an estuary?

Accepted Answer

A)  The ocean bringing in nutrients 
B)  Salt-tolerant plants producing carbohydrates 
C)  Salt-tolerant plants being decomposed 
D)  The river depositing nutrient-rich sediments 
A)  The ocean bringing in nutrients 
B)  Salt-tolerant plants producing carbohydrates 
C)  Salt-tolerant plants being decomposed 
D)  The river depositing nutrient-rich sediments

Question 11

What process re-establishes climax communities after a major disruption in the environment?

Accepted Answer

A)  Progression 
B)  Carrying capacity 
C)  Desiccation 
D)  Succession 
A)  Progression 
B)  Carrying capacity 
C)  Desiccation 
D)  Succession

Question 12

What is a climax community?

Accepted Answer

A)  The first community after a large disruption 
B)  A new, growing community 
C)  A stable, long-established community 
D)  The decline of a community after it peaks 
A)  The first community after a large disruption 
B)  A new, growing community 
C)  A stable, long-established community 
D)  The decline of a community after it peaks

Question 13

Which distribution is the rarest found in communities?

Accepted Answer

A)  Random distribution 
B)  Uniform distribution 
C)  Clumped distribution 
D)  Normal distribution 
A)  Random distribution 
B)  Uniform distribution 
C)  Clumped distribution 
D)  Normal distribution

Question 14

What determines the number and composition of the populations in a community?

Accepted Answer

A)  Food 
B)  Light 
C)  Space 
D)  All of these choices 
A)  Food 
B)  Light 
C)  Space 
D)  All of these choices

Question 15

In a stable community, multiple populations can occupy the same role to ensure biodiversity.

Accepted Answer

A) True 
 B)False

Question 16

What is environmental resistance?

Accepted Answer

A)  The decline in population growth 
B)  The effect of limiting factors on the environment 
C)  The maximum population growth in an environment 
D)  The movement of one population against another 
A)  The decline in population growth 
B)  The effect of limiting factors on the environment 
C)  The maximum population growth in an environment 
D)  The movement of one population against another

Question 17

The usual rigors of the intertidal zone are less severe in the sandy intertidal than the rocky intertidal.

Accepted Answer

A) True 
 B)False

Question 18

What phylum is the most successful and widely distributed in terms of parasites?

Accepted Answer

A)  Nematoda 
B)  Annelida 
C)  Polychaeta 
D)  Mollusca 
A)  Nematoda 
B)  Annelida 
C)  Polychaeta 
D)  Mollusca

Question 19

What is the name for the pelagic community that lives in the upper limits of the permanent darkness in the deep ocean?

Accepted Answer

A)  Climax community 
B)  Rift community 
C)  Deep scattering layer 
D)  Benthic community 
A)  Climax community 
B)  Rift community 
C)  Deep scattering layer 
D)  Benthic community

Question 20

The conditions of the deep ocean-the eternal darkness, the cold, hypersaline water, and the high pressure-limits the extent of deep-ocean floor communities.

Accepted Answer

A) True 
 B)False

More than half of the animal species, marine and terrestrial, are not considered to be free-living.

What do most deep water consumers depend on for survival?

Which is not a characteristic of deep water animals?

What is the significance of the coral reefs of the Southern Line Islands?

What happens to climax communities after a disruption? How do these communities re-establish themselves after a disruption like a tropical storm? What is this process called?

What is a community?

Deep scattering layers are best developed in regions with high surface activity.

What challenges are faced by coral reefs today? What is the advantage of living in the tropical ocean which contains few nutrients? Hint: include reference to the National Geographic segment about the Southern Line Islands

Where is there no deep scattering layer present?

What provides the raw material for large and complex food webs within an estuary?

What process re-establishes climax communities after a major disruption in the environment?

What is a climax community?

Which distribution is the rarest found in communities?

What determines the number and composition of the populations in a community?

In a stable community, multiple populations can occupy the same role to ensure biodiversity.

What is environmental resistance?

The usual rigors of the intertidal zone are less severe in the sandy intertidal than the rocky intertidal.

What phylum is the most successful and widely distributed in terms of parasites?

What is the name for the pelagic community that lives in the upper limits of the permanent darkness in the deep ocean?

The conditions of the deep ocean-the eternal darkness, the cold, hypersaline water, and the high pressure-limits the extent of deep-ocean floor communities.

The Origin of the Ocean

A History of Marine Science

Earth Structure and Plate Tectonics

Ocean Basins

Ocean Sediments

Water and Ocean Structure

Ocean Chemistry

Circulation of the Atmosphere

Circulation of the Ocean

Waves

Tides

Coasts

Life in the Ocean

Plankton, Algae, and Plants

Marine Animals

Marine Resources

The Ocean and The Environment

Filters

Exam 16: Marine Communities

More than half of the animal species, marine and terrestrial, are not considered to be free-living.

What do most deep water consumers depend on for survival?

Which is not a characteristic of deep water animals?

What is the significance of the coral reefs of the Southern Line Islands?

What happens to climax communities after a disruption? How do these communities re-establish themselves after a disruption like a tropical storm? What is this process called?

What is a community?

Deep scattering layers are best developed in regions with high surface activity.

What challenges are faced by coral reefs today? What is the advantage of living in the tropical ocean which contains few nutrients? Hint: include reference to the National Geographic segment about the Southern Line Islands

Where is there no deep scattering layer present?

What provides the raw material for large and complex food webs within an estuary?

What process re-establishes climax communities after a major disruption in the environment?

What is a climax community?

Which distribution is the rarest found in communities?

What determines the number and composition of the populations in a community?

In a stable community, multiple populations can occupy the same role to ensure biodiversity.

What is environmental resistance?

The usual rigors of the intertidal zone are less severe in the sandy intertidal than the rocky intertidal.

What phylum is the most successful and widely distributed in terms of parasites?

What is the name for the pelagic community that lives in the upper limits of the permanent darkness in the deep ocean?

The conditions of the deep ocean-the eternal darkness, the cold, hypersaline water, and the high pressure-limits the extent of deep-ocean floor communities.

The Origin of the Ocean

A History of Marine Science

Earth Structure and Plate Tectonics

Ocean Basins

Ocean Sediments

Water and Ocean Structure

Ocean Chemistry

Circulation of the Atmosphere

Circulation of the Ocean

Waves

Tides

Coasts

Life in the Ocean

Plankton, Algae, and Plants

Marine Animals

Marine Resources

The Ocean and The Environment

Filters