Question 1

Purple loosestrife would be considered:

Accepted Answer

A)  An exotic species
B)  A native species
C)  A consumer
D)  A parasite
E)  A beneficial speciesF) B) and E)
G) C) and E)

Question 2

A species that humans bring to an area where it did not previously occur is:

Accepted Answer

A)  An exotic species
B)  A native species
C)  An endemic species
D)  An existing species
E)  An endangered speciesF) B) and D)
G) C) and D)

Question 3

figure 39.21a 
-At which elevations were most frog extinctions occurring according to figure 39.21a?

Accepted Answer

A)  0-199 m
B)  200-1000 m
C)  2,400-4,000 m
D)  1,001-2,399 m
E)  They were equally distributed at all elevations.F) C) and D)
G) A) and B)

Question 4

Red and brown tides resulting from algal blooms may kill sea life.

Accepted Answer

A) True 
 B)False

Question 5

In addition to filling in lakes,why is eutrophication a biological concern?

Accepted Answer

A)  Filling in lakes is the only major concern
B)  Excess plant growth leads to high levels of dissolved oxygen
C)  Excess plant growth makes it difficult for primary consumers to find food
D)  High levels of nutrients are toxic to plants
E)  When the plants die and decompose dissolved oxygen levels dropF) A) and E)
G) A) and D)

Question 6

Release of sulfate and nitrate during the burning of coal contributes to ___.

Accepted Answer

A)  Eutrophication
B)  Acid rain
C)  Accumulation of persistent organic pollutants
D)  Loss of the ozone layer
E)  The dead zoneF) B) and C)
G) B) and E)

Question 7

One key to reversing environmental decline will be to slow the growth of the human population.

Accepted Answer

A) True 
 B)False

Question 8

An increase in the surface temperature of the Earth caused by heat trapping gases in the atmosphere is known as:

Accepted Answer

A)  The greenhouse effect
B)  The biome effect
C)  Bioremediation
D)  Desertification
E)  The nursery effectF) C) and E)
G) A) and D)

Question 9

The Montreal Protocol,an international treaty,banned the use of:

Accepted Answer

A)  DDT
B)  Steroid hormones
C)  ICBMs
D)  Ethylene glycol
E)  CFCsF) A) and C)
G) B) and E)

Question 10

Since the settling of North America by Europeans,only about ___________ percent of the original temperate forest area survives.

Accepted Answer

A)  1
B)  5
C)  10
D)  20
E)  25F) B) and E)
G) A) and B)

Question 11

Which of the following best describes the greenhouse effect?

Accepted Answer

A)  Less light is radiated from the atmosphere
B)  More light enters the atmosphere
C)  More heat enters the atmosphere
D)  Less heat is radiated from the atmosphere
E)  The Earth produces more heatF) All of the above
G) B) and E)

Question 12

Which of the following is an invasive species?

Accepted Answer

A)  Zebra mussels in the Great Lakes
B)  Brown tree snakes of Guam
C)  The bison in the North American plains
D)  The marine toad in Florida
E)  Gypsy moth caterpillars in North AmericaF) A) and E)
G) B) and E)

Question 13

Which of the following is not an effect of acid rain?

Accepted Answer

A)  The destruction of aquatic food webs
B)  The thinning of high-elevation forests
C)  A decrease in the number of species that can survive in the lake ecosystem
D)  The raising of pH in lakes
E)  Causing deformities in fish and other aquatic organismsF) C) and E)
G) B) and E)

Question 14

Approximately _______________ of the world's moist tropical forests have been cleared.

Accepted Answer

A)  One-eighth
B)  One-fourth
C)  One-half
D)  One-third
E)  None of the above are correctF) A) and B)
G) None of the above

Question 15

The ozone layer absorbs harmful ____________________ wavelengths of light.

Accepted Answer

A)  Ultraviolet
B)  Violet
C)  Red
D)  Blue
E)  GreenF) A) and B)
G) None of the above

Question 16

One important conservation tool used to restore native populations is to set aside an area and protect it from overexploitation,invasive species,and habitat destruction.

Accepted Answer

A) True 
 B)False

Question 17

How does damming a river destroy wetlands?

Accepted Answer

A)  Fish can no longer migrate up and down the river
B)  Wetlands can no longer obtain nutrients from annual floods
C)  Wetlands can no longer obtain oxygen from the flowing water of the river
D)  Birds can no longer get to the wetlands
E)  Increased nutrients flow into the wetlands causing eutrophicationF) A) and B)
G) B) and E)

Question 18

The greatest threat to the endangered great spotted kiwi of New Zealand is introduced predators.

Accepted Answer

A) True 
 B)False

Question 19

How is tropical deforestation linked to climate change?

Accepted Answer

A)  Burning the forests releases carbon dioxide and transpiration by trees is diminished.
B)  Burning the forests consumes oxygen and transpiration by trees is diminished.
C)  Burning the forests releases carbon dioxide and transpiration by trees is increased.
D)  Burning the forests consumes oxygen and transpiration by trees is increased.E) A) and D)
F) B) and C)

Question 20

Why are some conservation biologists concerned that the polar bear will be extinct by 2050?

Accepted Answer

A)  Over hunting will decrease the population
B)  Taiga will become tundra, brining in brown bears as competitors
C)  Increased snow will fall in the Arctic and the bears won't be able to hunt
D)  The seal population will decrease, and the bears will starve
E)  Arctic ice caps will melt and the bears won't be able to huntF) B) and E)
G) C) and D)

Exam 39: Conserving Biodiversity

The greatest threat to the endangered great spotted kiwi of New Zealand is introduced predators.

Correct AnswerverifiedShow Answer

How does damming a river destroy wetlands?

Correct AnswerverifiedShow Answer

Purple loosestrife would be considered:

Correct AnswerverifiedShow Answer

One important conservation tool used to restore native populations is to set aside an area and protect it from overexploitation,invasive species,and habitat destruction.

Correct AnswerverifiedShow Answer

An increase in the surface temperature of the Earth caused by heat trapping gases in the atmosphere is known as:

Correct AnswerverifiedShow Answer

How is tropical deforestation linked to climate change?

Correct AnswerverifiedShow Answer

Release of sulfate and nitrate during the burning of coal contributes to ___.

Correct AnswerverifiedShow Answer

In addition to filling in lakes,why is eutrophication a biological concern?

Correct AnswerverifiedShow Answer

Approximately _______________ of the world's moist tropical forests have been cleared.

Correct AnswerverifiedShow Answer

Which of the following is an invasive species?

Correct AnswerverifiedShow Answer

Why are some conservation biologists concerned that the polar bear will be extinct by 2050?

Correct AnswerverifiedShow Answer

Which of the following is not an effect of acid rain?

Correct AnswerverifiedShow Answer

One key to reversing environmental decline will be to slow the growth of the human population.

Correct AnswerverifiedShow Answer

Red and brown tides resulting from algal blooms may kill sea life.

Correct AnswerverifiedShow Answer

A species that humans bring to an area where it did not previously occur is:

Correct AnswerverifiedShow Answer

The ozone layer absorbs harmful ____________________ wavelengths of light.

Correct AnswerverifiedShow Answer

The Montreal Protocol,an international treaty,banned the use of:

Correct AnswerverifiedShow Answer

figure 39.21a -At which elevations were most frog extinctions occurring according to figure 39.21a?

Correct AnswerverifiedShow Answer

Which of the following best describes the greenhouse effect?

Correct AnswerverifiedShow Answer

Since the settling of North America by Europeans,only about ___________ percent of the original temperate forest area survives.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified