Question 1

Introduction of alien or exotic species into new ecosystems occurs by

Accepted Answer

A)  colonization when new settlers arrive in an area.
B)  accidental transport by ship or plane without anyone's knowledge.
C)  agricultural and horticultural activities.
D)  All of the choices are correct.E) A) and B)
F) 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 E)
G) None of the above

Question 3

Why is there great value in preserving biodiversity hotspots?

Accepted Answer

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

Question 4

Bacteria are the group in which there is the least amount of known and the fewest species recognized.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following statements applies to an ecosystem with a high level of biodiversity?

Accepted Answer

A)  The ecosystem will have a higher rate of photosynthesis than a comparable ecosystem with a low level of biodiversity.
B)  Resource partitioning will occur easier in an ecosystem that has a high level of biodiversity.
C)  The food web will be more complex and will have a greater number of connections within it.
D)  Areas of high biodiversity are economically more valuable than areas with limited biodiversity.
E)  All of these apply to an ecosystem with a high level of biodiversity.F) All of the above
G) A) and D)

Question 6

Animals that are revered by humans due to their appearance or emotional ties are

Accepted Answer

A)  flagship species.
B)  keystone species.
C)  endangered species.
D)  threatened species.E) A) and C)
F) None of the above

Question 7

Biodiversity is described in terms of genetic,community,and landscape diversity.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following statements concerning the indirect values of biodiversity is NOT correct?

Accepted Answer

A)  Trees take up carbon dioxide and release oxygen when they photosynthesize.
B)  Forests act as a sponge to soak up water and release it during drier periods.
C)  If biodiversity cannot maintain the biogeochemical cycles,then technology will have to artificially create those cycles.
D)  Diverse organisms are critical in breaking down wastes and immobilizing pollutants.
E)  All of the choices are correct.None of these statements are incorrect.F) B) and D)
G) A) and C)

Question 9

Conservation biology supports all of the following ethical principles EXCEPT

Accepted Answer

A)  biodiversity is desirable for the biosphere and humans.
B)  all animals have the same rights or legal status as humans.
C)  biodiversity has value in and of itself regardless of any practical human benefits.
D)  extinctions due to human actions are undesirable.
E)  the complex interactions of ecosystems support biodiversity and are desirable.F) C) and E)
G) B) and C)

Question 10

Preliminary studies indicate that biodiversity maximizes resource acquisition and retention within an ecosystem.

Accepted Answer

A) True 
 B)False  True

Question 11

Madagascar is considered a biodiversity "hotspot" because

Accepted Answer

A)  it originated as a volcanic island.
B)  it has lost nearly all of its native species to extinction.
C)  it contains an unusually high concentration of species.
D)  it has resisted habitat destruction that has caused extinctions elsewhere.
E)  All of the choices are correct.F) A) and B)
G) C) and D)

Question 12

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) C) and D)

Question 13

During habitat preservation landscape preservation is often intended for one particular organism but may benefit others.

Accepted Answer

A) True 
 B)False  True

Question 14

Which of the following statements about extinction is TRUE?

Accepted Answer

A)  Overexploitation by hunting and fishing is the major threat to tropical animals and plants.
B)  Without human activity,all species would survive and there would be no extinctions.
C)  Endangered wild species often become extinct due to different combinations of factors.
D)  Commercial hunting and fishing are careful not to deplete animal reserves.
E)  Introduction of new exotic species helps preserve biodiversity and slow extinction.F) A) and C)
G) A) and E)

Question 15

Scientists estimate that at least 50-60% of all species now living will most likely become extinct in the next 20-50 years unless planned,coordinated action takes place.

Accepted Answer

A) True 
 B)False

Question 16

The situation with major oceanic fishing areas is

Accepted Answer

A)  good,since the oceans are so large,they are the one remaining natural ecosystem that is not susceptible to extinction.
B)  generally positive,with only one or two of the 15 major oceanic fishing areas over-exploited.
C)  generally negative,with 11 of the 15 major oceanic fishing areas overexploited.
D)  positive for the bottom dwellers that are protected but negative for the schools of swimming fish.
E)  negative for the bottom dwellers that are over-fished by trawling but positive for the schools of swimming fish that can easily get away.F) A) and D)
G) B) and C)

Question 17

Which of the following species is both a keystone species and a flagship species?

Accepted Answer

A)  grizzly bear
B)  panda
C)  beaver
D)  dolphin
E)  alligatorF) B) and E)
G) C) and D)

Question 18

Conservation biology is a field that relies on multiple other disciplines to support it.

Accepted Answer

A) True 
 B)False

Question 19

When the factors causing habitat decline are identified and a procedure is developed to remedy this,it is

Accepted Answer

A)  the edge effect.
B)  a habitat restoration plan.
C)  a population viability analysis.
D)  a gap analysis.
E)  landscape dynamics.F) B) and E)
G) A) and C)

Question 20

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) A) and B)
F) A) and C)

Exam 47: Conservation of Biodiversity

Introduction of alien or exotic species into new ecosystems occurs by

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Why is there great value in preserving biodiversity hotspots?

Correct AnswerverifiedE

Bacteria are the group in which there is the least amount of known and the fewest species recognized.

Correct AnswerverifiedShow Answer

Which of the following statements applies to an ecosystem with a high level of biodiversity?

Correct AnswerverifiedShow Answer

Animals that are revered by humans due to their appearance or emotional ties are

Correct AnswerverifiedShow Answer

Biodiversity is described in terms of genetic,community,and landscape diversity.

Correct AnswerverifiedShow Answer

Which of the following statements concerning the indirect values of biodiversity is NOT correct?

Correct AnswerverifiedShow Answer

Conservation biology supports all of the following ethical principles EXCEPT

Correct AnswerverifiedShow Answer

Preliminary studies indicate that biodiversity maximizes resource acquisition and retention within an ecosystem.

Correct AnswerverifiedTrue

Madagascar is considered a biodiversity "hotspot" because

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

During habitat preservation landscape preservation is often intended for one particular organism but may benefit others.

Correct AnswerverifiedTrue

Which of the following statements about extinction is TRUE?

Correct AnswerverifiedShow Answer

Scientists estimate that at least 50-60% of all species now living will most likely become extinct in the next 20-50 years unless planned,coordinated action takes place.

Correct AnswerverifiedShow Answer

The situation with major oceanic fishing areas is

Correct AnswerverifiedShow Answer

Which of the following species is both a keystone species and a flagship species?

Correct AnswerverifiedShow Answer

Conservation biology is a field that relies on multiple other disciplines to support it.

Correct AnswerverifiedShow Answer

When the factors causing habitat decline are identified and a procedure is developed to remedy this,it is

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

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