Question 1

A synergistic relationship occurs when ________.

Accepted Answer

A)  one individual benefits from another 
B)  each party benefits from the other 
C)  one organism preys on the other 
D)  two or more separate entities together are greater than the sum of the individuals 
A)  one individual benefits from another 
B)  each party benefits from the other 
C)  one organism preys on the other 
D)  two or more separate entities together are greater than the sum of the individuals D

Question 2

The intermediate disturbance hypothesis suggests that ________.

Accepted Answer

A)  ecosystems with high levels of disturbance will have lower levels of diversity 
B)  ecosystems with moderate levels of disturbance will maintain high levels of diversity 
C)  diversity levels in ecosystems do not increase indefinitely 
D)  All of the above 
A)  ecosystems with high levels of disturbance will have lower levels of diversity 
B)  ecosystems with moderate levels of disturbance will maintain high levels of diversity 
C)  diversity levels in ecosystems do not increase indefinitely 
D)  All of the above D

Question 3

Inertia is ________.

Accepted Answer

A)  the ability of an ecosystem to repel invasive species 
B)  the slow pace of ecosystem succession 
C)  the ability of an ecosystem to recover to its original state following a disturbance 
D)  the ability of an ecosystem to withstand change 
A)  the ability of an ecosystem to repel invasive species 
B)  the slow pace of ecosystem succession 
C)  the ability of an ecosystem to recover to its original state following a disturbance 
D)  the ability of an ecosystem to withstand change D

Question 4

The following is often a reason that a native species may become hyperabundant: ________.

Accepted Answer

A)  environmental protective legislation that designates conservation areas 
B)  the species habitat has remained untouched, allowing the population to grow rapidly 
C)  adaptation that allows for rapid reproduction 
D)  the removal of the native species predators from the area 
A)  environmental protective legislation that designates conservation areas 
B)  the species habitat has remained untouched, allowing the population to grow rapidly 
C)  adaptation that allows for rapid reproduction 
D)  the removal of the native species predators from the area

Question 5

Viral haemorrhagic septicaemia (VHS) is a serious threat to ________.

Accepted Answer

A)  phytoplankton 
B)  humans 
C)  waterfowl 
D)  fish 
A)  phytoplankton 
B)  humans 
C)  waterfowl 
D)  fish

Question 6

Resilience is _________.

Accepted Answer

A)  the slow pace of ecosystem succession 
B)  the ability of an ecosystem to repel invasive species 
C)  the ability of an ecosystem to withstand change 
D)  the ability of an ecosystem to recover to its original state following a disturbance 
A)  the slow pace of ecosystem succession 
B)  the ability of an ecosystem to repel invasive species 
C)  the ability of an ecosystem to withstand change 
D)  the ability of an ecosystem to recover to its original state following a disturbance

Question 7

Canada has experienced a serious alien invasion of ________.

Accepted Answer

A)  zebra mussel 
B)  Dutch elm disease 
C)  knapweed 
D)  All of the above 
A)  zebra mussel 
B)  Dutch elm disease 
C)  knapweed 
D)  All of the above

Question 8

Polar amplification will lead to ________.

Accepted Answer

A)  a cooler climate 
B)  higher albedo 
C)  greater snowpack 
D)  greater snow melt 
A)  a cooler climate 
B)  higher albedo 
C)  greater snowpack 
D)  greater snow melt

Question 9

All alien species are invasive.

Accepted Answer

A) True 
 B)False

Question 10

________ occurs where a community frequently returns to earlier seral stages due to disturbance.

Accepted Answer

A)  Cyclic succession 
B)  Primary succession 
C)  Re-succession 
D)  Seral succession 
A)  Cyclic succession 
B)  Primary succession 
C)  Re-succession 
D)  Seral succession

Question 11

Sitka black-tailed deer were deliberately introduced to ________.

Accepted Answer

A)  control vegetation 
B)  provide recreational hunting 
C)  provide food for local people 
D)  provide food for wolves 
A)  control vegetation 
B)  provide recreational hunting 
C)  provide food for local people 
D)  provide food for wolves

Question 12

Alien species are not a large problem in Canada.

Accepted Answer

A) True 
 B)False

Question 13

________ is an invasive species.

Accepted Answer

A)  Purple loosestrife 
B)  Rainbow trout 
C)  Spiny water fleas 
D)  All of the above 
A)  Purple loosestrife 
B)  Rainbow trout 
C)  Spiny water fleas 
D)  All of the above

Question 14

Rapid evolution of species in response to human activities is called ________.

Accepted Answer

A)  adaptive radiation 
B)  natural selection 
C)  co-evolution 
D)  contemporary evolution 
A)  adaptive radiation 
B)  natural selection 
C)  co-evolution 
D)  contemporary evolution

Question 15

Ecological succession is a rapid process.

Accepted Answer

A) True 
 B)False

Question 16

Sea otters help control the populations of other species by ________.

Accepted Answer

A)  building dams that result in ponds and habitat for other species 
B)  helping to maintain food and habitat sources for other species by reducing kelp numbers 
C)  preying on key lower trophic level predators 
D)  helping to protect spawning grounds from predators 
A)  building dams that result in ponds and habitat for other species 
B)  helping to maintain food and habitat sources for other species by reducing kelp numbers 
C)  preying on key lower trophic level predators 
D)  helping to protect spawning grounds from predators

Question 17

The Burgess Shales fossils date to the ________.

Accepted Answer

A)  Paleozoic era 
B)  Cambrian era 
C)  Cretaceous era 
D)  Mesozoic era 
A)  Paleozoic era 
B)  Cambrian era 
C)  Cretaceous era 
D)  Mesozoic era

Question 18

Without human intervention, ecosystems remain unchanged over time.

Accepted Answer

A) True 
 B)False

Question 19

In an edaphic climax, vegetation type is limited by ________.

Accepted Answer

A)  wind speed 
B)  precipitation 
C)  temperature 
D)  soil type 
A)  wind speed 
B)  precipitation 
C)  temperature 
D)  soil type

Question 20

What are the ecological roles of fire?

Accepted Answer

Fire is a natural occurrence that has nu

A synergistic relationship occurs when ________.

The intermediate disturbance hypothesis suggests that ________.

Inertia is ________.

The following is often a reason that a native species may become hyperabundant: ________.

Viral haemorrhagic septicaemia (VHS) is a serious threat to ________.

Resilience is _________.

Canada has experienced a serious alien invasion of ________.

Polar amplification will lead to ________.

All alien species are invasive.

________ occurs where a community frequently returns to earlier seral stages due to disturbance.

Sitka black-tailed deer were deliberately introduced to ________.

Alien species are not a large problem in Canada.

________ is an invasive species.

Rapid evolution of species in response to human activities is called ________.

Ecological succession is a rapid process.

Sea otters help control the populations of other species by ________.

The Burgess Shales fossils date to the ________.

Without human intervention, ecosystems remain unchanged over time.

In an edaphic climax, vegetation type is limited by ________.

What are the ecological roles of fire?

Environment, Resources, and Society

Responding to Global Environmental Change

Energy Flows and Ecosystems

Ecosystems and Matter Cycling

Planning and Management Perspectives

Planning and Management: Processes and Methods

Climate Change

Oceans and Fisheries

Forests

Agriculture

Water

Minerals and Energy

Urban Environmental Management

Endangered Species and Protected Areas

Filters

Exam 4: Ecosystems Are Dynamic

A synergistic relationship occurs when ________.

The intermediate disturbance hypothesis suggests that ________.

Inertia is ________.

The following is often a reason that a native species may become hyperabundant: ________.

Viral haemorrhagic septicaemia (VHS) is a serious threat to ________.

Resilience is _________.

Canada has experienced a serious alien invasion of ________.

Polar amplification will lead to ________.

All alien species are invasive.

________ occurs where a community frequently returns to earlier seral stages due to disturbance.

Sitka black-tailed deer were deliberately introduced to ________.

Alien species are not a large problem in Canada.

________ is an invasive species.

Rapid evolution of species in response to human activities is called ________.

Ecological succession is a rapid process.

Sea otters help control the populations of other species by ________.

The Burgess Shales fossils date to the ________.

Without human intervention, ecosystems remain unchanged over time.

In an edaphic climax, vegetation type is limited by ________.

What are the ecological roles of fire?

Environment, Resources, and Society

Responding to Global Environmental Change

Energy Flows and Ecosystems

Ecosystems and Matter Cycling

Planning and Management Perspectives

Planning and Management: Processes and Methods

Climate Change

Oceans and Fisheries

Forests

Agriculture

Water

Minerals and Energy

Urban Environmental Management

Endangered Species and Protected Areas

Filters