Question 1

Which of the following statements about kudzu is false ?

Accepted Answer

A) It provides a starch used in beverages and gourmet confections. 
B) It provides herbal remedies for several diseases. 
C) It can be controlled by normal weed control measures. 
D) Almost every part of the plant is edible. 
E) It is a source of fiber for paper that could replace use of trees.

Question 2

In ____________________ some or all of the individuals of a critically endangered species are collected for breeding so their offspring can be introduced to the wild

Accepted Answer

The answer of In ____________________ some or all of the...

Question 3

We should act to prevent premature extinction of species, in part because they contribute to ____________________, those services that support our economies.

Accepted Answer

The answer of We should act to prevent premature extinction...

Question 4

The extinction of many species in a relatively short period of geologic time is called ____.

Accepted Answer

A) mass extinction 
B) secondary extinction 
C) biological extinction 
D) background extinction rate 
E) tertiary extinction

Question 5

Island species - often found nowhere else - are especially vulnerable to extinctions when their habitat is destroyed.

Accepted Answer

A) True 
 B)False

Question 6

During this century, with global climate change and other human activities, the current extinction rate could reach ____________________ times the background rate of extinction.

Accepted Answer

The answer of During this century, with global climate change...

Question 7

DDT use in the 1950s and 1960s was nearly responsible for the extinction of what familiar bird species?

Accepted Answer

A) red-tailed hawk 
B) common pigeon 
C) chicken 
D) bald eagle 
E) cardinal

Question 8

Illegal hunting for profit is called ____.

Accepted Answer

A) subsistence hunting 
B) sport hunting 
C) commercial hunting 
D) poaching 
E) pilfering

Question 9

Egg pulling refers to ____.

Accepted Answer

A) techniques used to extend the breeding span of captured birds 
B) collecting eggs from the wild and hatching them 
C) using fertility drugs to increase the number of eggs 
D) production of hybrids in captive breeding programs 
E) collecting unfertilized eggs from ovaries of wild animals

Question 10

What percentage of the world's 10,000 bird species is declining in number?

Accepted Answer

A) 95% 
B) 70% 
C) 50% 
D) 33% 
E) 25%

Question 11

Many biologists consider the rapid loss of the earth's biodiversity to be the most serious and long-lasting environmental problem the world faces.

Accepted Answer

A) True 
 B)False

Question 12

Explain, in your own words, why the degradation and loss of honeybee colonies are seen as an important example of biodiversity loss.

Accepted Answer

The answer of Explain, in your own words, why the...

Question 13

CITES is a(n)____.

Accepted Answer

A) regulations controlling the introduction of exotic species 
B) treaty controlling the international trade in endangered species 
C) pact that supports critical ecosystems that support wildlife 
D) international organization dedicated to the preservation of endangered species 
E) policing agency for the protection of threatened species

Question 14

In what ways have non-native species been beneficial?

Accepted Answer

The answer of In what ways have non-native species been...

Question 15

The greatest eliminator of species is over-hunting and over-fishing.

Accepted Answer

A) True 
 B)False

Question 16

According to biological and fossil evidence, all species eventually become extinct.

Accepted Answer

A) True 
 B)False

Question 17

According to researchers, the greatest threat to wild species is ____.

Accepted Answer

A) habitat destruction 
B) invasive species 
C) population and resource use growth 
D) pollution 
E) climate change

Question 18

Bioprospectors are ____.

Accepted Answer

A) miners that cause the extinction of plants and animals 
B) people who search for plants and animals scientist can use to make medicinal drugs 
C) plants that contain phytochemicals 
D) conservation biologists that promote ecotourism 
E) people who decide which species should be protected

Question 19

The Convention on Biological Diversity, ratified by 191 countries, seeks to reverse the global decline of biodiversity and share the benefits from the use of genetic resources. What has slowed this progress?

Accepted Answer

A) penalties too severe for violators 
B) harsh enforcement mechanisms 
C) the lack of ratification by the U.S. 
D) focusing on ecosystems rather than individuals 
E) consideration for the traditions of indigenous peoples

Question 20

What percentage of the world's known plant species have been examined for medicinal properties?

Accepted Answer

A) 0.5% 
B) 5% 
C) 10% 
D) 25% 
E) 33%

Exam 9: Sustaining Biodiversity: The Species Approach

Which of the following statements about kudzu is false ?

In ____________________ some or all of the individuals of a critically endangered species are collected for breeding so their offspring can be introduced to the wild

We should act to prevent premature extinction of species, in part because they contribute to ____________________, those services that support our economies.

The extinction of many species in a relatively short period of geologic time is called ____.

Island species - often found nowhere else - are especially vulnerable to extinctions when their habitat is destroyed.

During this century, with global climate change and other human activities, the current extinction rate could reach ____________________ times the background rate of extinction.

DDT use in the 1950s and 1960s was nearly responsible for the extinction of what familiar bird species?

Illegal hunting for profit is called ____.

Egg pulling refers to ____.

What percentage of the world's 10,000 bird species is declining in number?

Many biologists consider the rapid loss of the earth's biodiversity to be the most serious and long-lasting environmental problem the world faces.

Explain, in your own words, why the degradation and loss of honeybee colonies are seen as an important example of biodiversity loss.

CITES is a(n) ____.

In what ways have non-native species been beneficial?

The greatest eliminator of species is over-hunting and over-fishing.

According to biological and fossil evidence, all species eventually become extinct.

According to researchers, the greatest threat to wild species is ____.

Bioprospectors are ____.

The Convention on Biological Diversity, ratified by 191 countries, seeks to reverse the global decline of biodiversity and share the benefits from the use of genetic resources. What has slowed this progress?

What percentage of the world's known plant species have been examined for medicinal properties?