Question 1

What is the correct sequence of events that has led to the decimation of the kelp beds along the west coast of the U.S.? a.sea otters decline in numbers
B.increase in orca predation on sea otters
C.decline in the seals and sea lions
D.overfishing of the herring and perch
E.increase in the sea urchin population

Accepted Answer

A)  d - c - b - a - e
B)  d - c - b - e - a
C)  a - d - c - b - e
D)  d - b - c - a - e
E)  b - d - c - a - eF) A) and D)
G) A) and C)

Question 2

Rosy periwinkle,the nine-banded armadillo,and some species of fungus and bacteria have ________ value to man.

Accepted Answer

A)  agricultural
B)  medicinal
C)  consumptive use
D)  indirect
E)  noF) B) and C)
G) A) and E)

Question 3

What is the primary goal of conservation biology?

Accepted Answer

A)  management of the Earth's biodiversity
B)  discovery of new sources of food and medicines
C)  preservation of crucial habitat for the benefit of multiple species
D)  balance the needs of the human population against the rest of the species on Earth
E)  identify the most endangered and threatened species so efforts can be made to protect themF) C) and E)
G) C) and D)

Question 4

Which of the following statements about keystone species is NOT true?

Accepted Answer

A)  The extinction of keystone species can lead to other extinctions and a loss of biodiversity.
B)  Keystone species are defined as a population subdivided into several small,isolated populations due to habitat fragmentation.
C)  Examples of keystone species are grizzly bears,bats,beavers and alligators.
D)  The numbers of individuals in the keystone species in their respective community may or may not be excessively high.E) A) and C)
F) All of the above

Question 5

Describe the sequence of problems associated with tropical rainforest destruction.

Accepted Answer

Settlement in the rainforests is usually...

Question 6

The use of wheat,corn,rice and other crops derived from wild ancestors is an example of the ________ value of biodiversity.

Accepted Answer

A)  agricultural
B)  medicinal
C)  consumptive use
D)  climatic regulationE) B) and D)
F) B) and C)

Question 7

How does ocean fishing affect marine ecosystems today?

Accepted Answer

A)  Because the oceans are so large,they are the one remaining natural ecosystem that is not susceptible to extinction.
B)  Only 2 of the 15 major oceanic fishing areas are considered overexploited.
C)  Ocean fishing has resulted in overexploitation in 11 of the 15 major oceanic fishing areas.
D)  There has been an increase of bottom-dwelling ocean fish,but schools of swimming fish have declined.
E)  Bottom-dwelling fish are frequently overfished by trawling,but schools of swimming fish that can easily get away are increasing.F) B) and E)
G) All of the above

Question 8

The science of collecting,analyzing,and making readily available biological information is

Accepted Answer

A)  habitat restoration planning.
B)  landscape preservation.
C)  bioinformatics.
D)  a population viability analysis.E) A) and B)
F) A) and C)

Question 9

Why is there great value in preserving biodiversity hotspots?

Accepted Answer

A)  Biodiversity hotspots have a large diversity of species in them.
B)  Biodiversity hotspots have a direct value to humans.
C)  Biodiversity hotspots have an indirect value to humans.
D)  Biodiversity hotspots are often a source of new medicines.
E)  All of these are values of preserving biodiversity hotspots.F) B) and D)
G) B) and C)

Question 10

What was the root cause of the decline of kelp beds on the west coast of the U.S.?

Accepted Answer

A)  Overfishing of the perch and herring in the area.
B)  A decline in the sea otter population that would control the sea urchin population.
C)  An increase in the orca population preying upon the sea otters.
D)  An explosion of the sea urchin population.
E)  A decline in the seal and sea otter population.F) A) and D)
G) A) and E)

Question 11

A decrease in the overfishing of herring and perch would have prevented the decimation of the kelp beds along the west coast of the U.S.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following statements about biological diversity is NOT true?

Accepted Answer

A)  Scientists estimate that 10-50 million species exist.
B)  Biodiversity is described in terms of genetic,community,and landscape diversity.
C)  Biodiversity refers to the variety of life on Earth.
D)  Biodiversity is evenly distributed throughout the biosphere.
E)  Many species that are in danger of extinction have not been identified and studied.F) None of the above
G) A) and D)

Question 13

While the preservation of a landscape is often intended for one particular organism,often times other species will also benefit.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following fields of study provide useful information for making decisions about conservation?

Accepted Answer

A)  agronomy
B)  veterinary science
C)  genetics
D)  physiology
E)  All of these fields provide useful information for making decisions about conservation.F) A) and B)
G) C) and E)

Question 15

Which of the following preservation tactics would have the greatest impact on saving the largest number of species?

Accepted Answer

A)  preserve a large tract of land that contains source populations of keystone species
B)  preserve several small tracts of land that contain source populations of keystone species
C)  preserve a large tract of land that contains sink populations of keystone species
D)  preserve a large tract of land that contains source populations of flagship species
E)  preserve multiple small tracts of land that each contain source populations of keystone speciesF) A) and C)
G) A) and D)

Question 16

Which of the following statements about extinction is TRUE?

Accepted Answer

A)  Overexploitation by hunting and fishing is the biggest threat to tropical animals and plants.
B)  Without human activity,all species would survive and there would be no extinctions.
C)  Wild species often become extinct due to different combinations of factors.
D)  Commercial hunting and fishing are always careful not to deplete animal reserves.
E)  Introduction of new exotic species should help increase biodiversity,slowing species extinctions.F) A) and C)
G) B) and E)

Question 17

Rabbits were introduced to Australia by pioneer settlers in the mid-1800s for sporting hunters.They have since stressed native marsupial and plant populations.This is an example of the introduction of exotic species through accidental transport.

Accepted Answer

A) True 
 B)False

Question 18

In which of these landscape patches are species most subject to the edge effect? Explain your answer.

Accepted Answer

The species living in the smallest patch...

Question 19

Forests and other ecosystems may decrease the chances of flooding in an area due to their water-holding capacity.

Accepted Answer

A) True 
 B)False

Question 20

Scientists have predicted minimum,maximum,and probable temperature increases due to global warming by the year 2060 that will lead to further species extinctions.  A.What is the maximum likely increase in temperature by the year 2060?
B.What is the minimum likely increase in temperature by the year 2060?
C.What is the most probable increase in temperature by the year 2060?

Accepted Answer

A.The maximum likely temperature increas...

Exam 47: Conservation of Biodiversity

In which of these landscape patches are species most subject to the edge effect? Explain your answer.

Correct Answer
verified
The species living in the smallest patch...
View Answer

Which of the following fields of study provide useful information for making decisions about conservation?

Correct Answer
verified

Correct Answer
verified
A.The maximum likely temperature increas...
View Answer

Rabbits were introduced to Australia by pioneer settlers in the mid-1800s for sporting hunters.They have since stressed native marsupial and plant populations.This is an example of the introduction of exotic species through accidental transport.

Correct Answer
verified

The use of wheat,corn,rice and other crops derived from wild ancestors is an example of the ________ value of biodiversity.

Correct Answer
verified

How does ocean fishing affect marine ecosystems today?

Correct Answer
verified

Which of the following statements about extinction is TRUE?

Correct Answer
verified

Which of the following statements about keystone species is NOT true?

Correct Answer
verified

What is the primary goal of conservation biology?

Correct Answer
verified

What was the root cause of the decline of kelp beds on the west coast of the U.S.?

Correct Answer
verified

Describe the sequence of problems associated with tropical rainforest destruction.

Correct Answer
verified
Settlement in the rainforests is usually...
View Answer

Which of the following preservation tactics would have the greatest impact on saving the largest number of species?

Correct Answer
verified

Why is there great value in preserving biodiversity hotspots?

Correct Answer
verified

A decrease in the overfishing of herring and perch would have prevented the decimation of the kelp beds along the west coast of the U.S.

Correct Answer
verified

Forests and other ecosystems may decrease the chances of flooding in an area due to their water-holding capacity.

Correct Answer
verified

While the preservation of a landscape is often intended for one particular organism,often times other species will also benefit.

Correct Answer
verified

Rosy periwinkle,the nine-banded armadillo,and some species of fungus and bacteria have ________ value to man.

Correct Answer
verified

The science of collecting,analyzing,and making readily available biological information is

Correct Answer
verified

Which of the following statements about biological diversity is NOT true?

Correct Answer
verified

Correct Answer
verified

Exam 47: Conservation of Biodiversity

In which of these landscape patches are species most subject to the edge effect? Explain your answer.

Correct AnswerverifiedThe species living in the smallest patch...View AnswerShow Answer

Which of the following fields of study provide useful information for making decisions about conservation?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedA.The maximum likely temperature increas...View AnswerShow Answer

Rabbits were introduced to Australia by pioneer settlers in the mid-1800s for sporting hunters.They have since stressed native marsupial and plant populations.This is an example of the introduction of exotic species through accidental transport.

Correct AnswerverifiedShow Answer

The use of wheat,corn,rice and other crops derived from wild ancestors is an example of the ________ value of biodiversity.

Correct AnswerverifiedShow Answer

How does ocean fishing affect marine ecosystems today?

Correct AnswerverifiedShow Answer

Which of the following statements about extinction is TRUE?

Correct AnswerverifiedShow Answer

Which of the following statements about keystone species is NOT true?

Correct AnswerverifiedShow Answer

What is the primary goal of conservation biology?

Correct AnswerverifiedShow Answer

What was the root cause of the decline of kelp beds on the west coast of the U.S.?

Correct AnswerverifiedShow Answer

Describe the sequence of problems associated with tropical rainforest destruction.

Correct AnswerverifiedSettlement in the rainforests is usually...View AnswerShow Answer

Which of the following preservation tactics would have the greatest impact on saving the largest number of species?

Correct AnswerverifiedShow Answer

Why is there great value in preserving biodiversity hotspots?

Correct AnswerverifiedShow Answer

A decrease in the overfishing of herring and perch would have prevented the decimation of the kelp beds along the west coast of the U.S.

Correct AnswerverifiedShow Answer

Forests and other ecosystems may decrease the chances of flooding in an area due to their water-holding capacity.

Correct AnswerverifiedShow Answer

While the preservation of a landscape is often intended for one particular organism,often times other species will also benefit.

Correct AnswerverifiedShow Answer

Rosy periwinkle,the nine-banded armadillo,and some species of fungus and bacteria have ________ value to man.

Correct AnswerverifiedShow Answer

The science of collecting,analyzing,and making readily available biological information is

Correct AnswerverifiedShow Answer

Which of the following statements about biological diversity is NOT true?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Correct Answer
verified
The species living in the smallest patch...
View Answer

Correct Answer
verified

Correct Answer
verified
A.The maximum likely temperature increas...
View 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
Settlement in the rainforests is usually...
View 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
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