Question 1

It can be said that, of the species now listed under the Endangered Species Act, more than half have populations that are either ____________________ or ____________________.

Accepted Answer

stable, im...

Question 2

Which of the following statements is not true about the Convention on Biological Diversity?

Accepted Answer

A)   It has been ratified by 191 countries.
B)   It legally commits participating governments to reducing the rate of biodiversity loss.
C)   It focuses on ecosystems rather than individual species.
D)   It has been ratified by the United States.
E)   Implementation has been slow.F) A) and B)
G) A) and C)

Question 3

All of the following statements about invasive species is true except

Accepted Answer

A)   Approximately 40% of species listed as endangered in the United States are on the list because of threats from invasive species.
B)   Most successful invader species are specialists.
C)   Both the European wild boar and the Burmese python are problematic invasive species in the state of Florida.
D)   Some invasive species have arrived in the ballast water in ships from distant ports.
E)   The African honeybee (killer bee)  was deliberately introduced.F) B) and C)
G) A) and D)

Question 4

MATCHING
For the list of animals, select the characteristic that would most likely contribute to its possible premature extinction.
-Florida panther

Accepted Answer

A)  low reproductive rate
B)  specialized niche
C)  narrow distribution
D)  feeds at a high trophic level
E)  rareF) fixed migratory patternG) commercially valuableH) large territoryI) D) and G)
J) B) and F)

Question 5

MATCHING
For the list of animals, select the characteristic that would most likely contribute to its possible premature extinction.
-giant panda

Accepted Answer

A)  low reproductive rate
B)  specialized niche
C)  narrow distribution
D)  feeds at a high trophic level
E)  rareF) fixed migratory patternG) commercially valuableH) large territoryI) A) and F)
J) A) and H)

Question 6

National parks can be viewed as habitat islands surrounded by

Accepted Answer

A)   Logging
B)   industrial activity and mining
C)   mining and logging
D)   mining, logging and agriculture
E)   mining, logging, agriculture and industrial activityF) A) and B)
G) A) and C)

Question 7

Which of the following is NOT a threat to endangered sea turtles?

Accepted Answer

A)   Use of their shells for tortoiseshell jewelry.
B)   Use of the turtles for food and medicinal ingredients.
C)   Use of their fins for fin soup that is considered an aphrodesiac.
D)   Discarded fishing lines and nets.
E)   Degradation or loss of beach habitat.F) C) and E)
G) B) and C)

Question 8

-A biologist wishes to see threatened bird species on her vacation, assuming that these species may not be around much longer. She decides to travel to the two countries with the highest density of threatened species per square kilometer. Which countries will she be visiting?

Accepted Answer

The answer of 
-A biologist wishes to see threatened bird...

Question 9

All of the following would strengthen the Endangered Species Act except

Accepted Answer

A)   establishing a core of survival habitats for listed species
B)   greatly increasing the funding for carrying out the ESA
C)   making the protection of endangered species on private land voluntary
D)   developing recovery plans for listed species more quickly
E)   emphasizing the protection of biological diversity and ecosystem functioningF) C) and D)
G) A) and B)

Question 10

Recent genetic research indicates that ____ or more individuals are needed for an endangered species to maintain its capacity for biological evolution.

Accepted Answer

A)   10
B)   100
C)   1,000
D)   10,000
E)   100,000F) B) and D)
G) None of the above

Question 11

Extinction can be the result of habitat fragmentation.

Accepted Answer

A) True 
 B)False

Question 12

A bioprospector is most likely someone who

Accepted Answer

A)   searches for fuel produced by plants
B)   tests plants and animals in tropical forests, and other ecosystems, to find chemicals that are potentially useful as medicinal drugs
C)   searches for truffles with the use of pigs to sniff out their partially hidden locations
D)   searches for oil and natural gas in areas below biologically rich ecosystems
E)   has a degree in biology but prospects for gold or other metalsF) A) and D)
G) A) and E)

Question 13

Most failed species reintroduction occurs because of lack of ____________________.

Accepted Answer

habitat
su...

Question 14

Select the human activity or program that has proven to be the most effective for protecting each of the listed species:
-whales

Accepted Answer

A)  international regulatory laws
B)  U.S. regulatory laws
C)  wildlife refuges
D)  botanical gardens
E)  captive breeding programsF) C) and E)
G) A) and E)

Question 15

HIPPCO is

Accepted Answer

A)   an acronym that summarizes the Endangered Species Act goals
B)   an acronym to summarize the direct causes of extinction resulting from human activities
C)   the name of an ecotourism company in Africa that specializes in hippopotamus sightings
D)   an acronym to summarize the health care right to privacy act
E)   an trading company in Africa that sells hippopotamus hidesF) C) and D)
G) A) and B)

Question 16

Ecosystems that do not undergo periodic fires are much more vulnerable to invader species.

Accepted Answer

A) True 
 B)False

Question 17

Birds contaminated with ____________________ were unable to successfully reproduce because of excessively fragile egg shells.

Accepted Answer

The answer of Birds contaminated with ____________________ were unable to...

Question 18

Explain the concept of a habitat island. In particular, discuss how a national park can be a habitat island.

Accepted Answer

A national park is typically a protected...

Question 19

Captive breeding programs in zoos

Accepted Answer

A)   eliminate the need to preserve critical habitats
B)   can be used for most species except mammals
C)   increase the genetic variability of species
D)   require the captive population to number between 100 and 500
E)   are very unsuccessfulF) B) and D)
G) A) and D)

Question 20

The international illegal trade in wildlife brings in an average of

Accepted Answer

A)   $600,000 per year
B)   $600,000 per hour
C)   $1.1 million per year
D)   $500,000 per hour
E)   $100 million per yearF) C) and D)
G) C) and E)

Exam 8: Sustaining Biodiversity: the Species Approach

A bioprospector is most likely someone who

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Ecosystems that do not undergo periodic fires are much more vulnerable to invader species.

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National parks can be viewed as habitat islands surrounded by

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Explain the concept of a habitat island. In particular, discuss how a national park can be a habitat island.

Correct AnswerverifiedA national park is typically a protected...View AnswerShow Answer

Most failed species reintroduction occurs because of lack of ____________________.

Correct Answerverifiedhabitatsu...View AnswerShow Answer

Which of the following is NOT a threat to endangered sea turtles?

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All of the following would strengthen the Endangered Species Act except

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It can be said that, of the species now listed under the Endangered Species Act, more than half have populations that are either ____________________ or ____________________.

Correct Answerverifiedstable, im...View AnswerShow Answer

-A biologist wishes to see threatened bird species on her vacation, assuming that these species may not be around much longer. She decides to travel to the two countries with the highest density of threatened species per square kilometer. Which countries will she be visiting?

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All of the following statements about invasive species is true except

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Extinction can be the result of habitat fragmentation.

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MATCHING For the list of animals, select the characteristic that would most likely contribute to its possible premature extinction. -Florida panther

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HIPPCO is

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MATCHING For the list of animals, select the characteristic that would most likely contribute to its possible premature extinction. -giant panda

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Recent genetic research indicates that ____ or more individuals are needed for an endangered species to maintain its capacity for biological evolution.

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Select the human activity or program that has proven to be the most effective for protecting each of the listed species: -whales

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Which of the following statements is not true about the Convention on Biological Diversity?

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Captive breeding programs in zoos

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Birds contaminated with ____________________ were unable to successfully reproduce because of excessively fragile egg shells.

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The international illegal trade in wildlife brings in an average of

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A national park is typically a protected...
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habitat
su...
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It can be said that, of the species now listed under the Endangered Species Act, more than half have populations that are either or .

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stable, im...
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