Question 1

It is estimated that between 20% and 50% of the world's plant and animal species will suffer premature extinction by the end of this century.

Accepted Answer

A) True 
 B)False

Question 2

Of the species now listed under the Endangered Species Act, more than ____________________ have populations that are either stabilizing or improving.

Accepted Answer

The answer of Of the species now listed under the...

Question 3

____________________ are people who look for plants and animals that may have medicinal value.

Accepted Answer

The answer of ____________________ are people who look for plants...

Question 4

National parks are areas that are protected. How can this type of protected area act as a habitat island?

Accepted Answer

The answer of National parks are areas that are protected....

Question 5

Red fire ants have developed a genetic resistance to pesticides.

Accepted Answer

A) True 
 B)False

Question 6

A species is discovered in a remote area of Hawaii during a new building project. This species is especially likely to be at risk of extinction due to this type of habitat change just because it is an island species.

Accepted Answer

A) True 
 B)False

Question 7

Domestic cats that live outdoors can consume wild animals. This has been a particular problem in Australia, where native marsupial mammals evolved without similar predators. How would you classify domestic cats in Australia?

Accepted Answer

A)  An accidentally introduced native species 
B)  An accidentally introduced nonnative species 
C)  A deliberately introduced nonnative species 
D)  A deliberately introduced native species 
E)  A native species but not an introduced species

Question 8

Why has the implementation of the Convention on Biological Diversity been slow?

Accepted Answer

A)  Lack of acceptance by the United Nations 
B)  War and conflict in many biodiversity hotspots 
C)  Inability of poor countries to enforce the conventions 
D)  Lack of ratification by key countries including the United States. 
E)  Difficulties in controlling poaching

Question 9

Habitat degradation is causing a(n) ____________________ because there are fewer places for new species to emerge.

Accepted Answer

The answer of Habitat degradation is causing a(n) ____________________ because...

Question 10

The Florida panther is a species of particular conservation concern that lives in southern Florida. Which of the following is an important characteristic of these cats that contributes to their increased risk of extinction?

Accepted Answer

A)  Panthers are abundant, making them a target for hunting. 
B)  Panthers are of limited commercial value. 
C)  Panthers require large territories. 
D)  Panthers are spread over a large geographic area. 
E)  Panthers feed at a low trophic level.

Question 11

What agency or group is responsible for studying the status of threatened dolphins and whether they should be listed as endangered under the U.S. Endangered Species Act?

Accepted Answer

A)  Environmental Protection Agency 
B)  CITES 
C)  National Marine Fisheries Service 
D)  Convention on Biological Diversity 
E)  U.S. Fish and Wildlife Service

Question 12

If you take a driving vacation to Mexico and then return to the United States in your car, you will be stopped at the border by U.S. agents who will ask if you are carrying any plants or animals. If you have any native plants with soil, these could be confiscated. What is the benefit to this process?

Accepted Answer

The answer of If you take a driving vacation to...

Question 13

Use the acronym HIPPCO to describe what is currently happening to the world's wild bird species.

Accepted Answer

The answer of Use the acronym HIPPCO to describe what...

Question 14

Digitalis, a medication used to treat heart failure, is obtained from the ____________________ plant.

Accepted Answer

The answer of Digitalis, a medication used to treat heart...

Question 15

A species is considered biologically extinct when it has disappeared from the earth.

Accepted Answer

A) True 
 B)False

Question 16

According to federal data, almost ____ of the ESA-protected species are recovering at the rate projected in their recovery plans.

Accepted Answer

A)  none 
B)  90% 
C)  35% 
D)  20% 
E)  10%

Question 17

Although many species are useful for humans, introduced exotic species are almost never useful.

Accepted Answer

A) True 
 B)False

Question 18

The growing consensus is that ____________________ in the European honeybee population is likely caused by a combination of interacting factors related to several forms of environmental degradation.

Accepted Answer

The answer of The growing consensus is that ____________________ in...

Question 19

Kudzu was deliberately introduced to the U.S. to help ____.

Accepted Answer

A)  stabilize honey bee populations 
B)  eliminate other invasive species 
C)  control soil erosion 
D)  manage colony collapse disorders in various species 
E)  produce sustainable food sources for humans

Question 20

The species-area relationship suggests that if 90% of the habitat of a terrestrial species is lost, then ____.

Accepted Answer

A)  90% of the species utilizing the area will go extinct 
B)  100% of the species utilizing the area will go extinct 
C)  50% of the species utilizing the area will go extinct 
D)  the speciation rate of invasive animals will increase 
E)  the habitat will become increasingly fragmented

Exam 8: Sustaining Biodiversity: Saving Species

It is estimated that between 20% and 50% of the world's plant and animal species will suffer premature extinction by the end of this century.

Of the species now listed under the Endangered Species Act, more than ____________________ have populations that are either stabilizing or improving.

____________________ are people who look for plants and animals that may have medicinal value.

National parks are areas that are protected. How can this type of protected area act as a habitat island?

Red fire ants have developed a genetic resistance to pesticides.

A species is discovered in a remote area of Hawaii during a new building project. This species is especially likely to be at risk of extinction due to this type of habitat change just because it is an island species.

Domestic cats that live outdoors can consume wild animals. This has been a particular problem in Australia, where native marsupial mammals evolved without similar predators. How would you classify domestic cats in Australia?

Why has the implementation of the Convention on Biological Diversity been slow?

Habitat degradation is causing a(n) ____________________ because there are fewer places for new species to emerge.

The Florida panther is a species of particular conservation concern that lives in southern Florida. Which of the following is an important characteristic of these cats that contributes to their increased risk of extinction?

What agency or group is responsible for studying the status of threatened dolphins and whether they should be listed as endangered under the U.S. Endangered Species Act?

Use the acronym HIPPCO to describe what is currently happening to the world's wild bird species.

Digitalis, a medication used to treat heart failure, is obtained from the ____________________ plant.

A species is considered biologically extinct when it has disappeared from the earth.

According to federal data, almost ____ of the ESA-protected species are recovering at the rate projected in their recovery plans.

Although many species are useful for humans, introduced exotic species are almost never useful.

The growing consensus is that ____________________ in the European honeybee population is likely caused by a combination of interacting factors related to several forms of environmental degradation.

Kudzu was deliberately introduced to the U.S. to help ____.

The species-area relationship suggests that if 90% of the habitat of a terrestrial species is lost, then ____.