Question 1

____________________ diversity is the most obvious component of biodiversity.

Accepted Answer

The answer of ____________________ diversity is the most obvious component...

Question 2

The loss of a(n)____________________ species can lead to population crashes and extinctions of other species in a community that depend on it.

Accepted Answer

The answer of The loss of a(n)____________________ species can lead...

Question 3

The role a species plays in its ecosystem is its ____.

Accepted Answer

A)  function 
B)  habitat 
C)  ecological niche 
D)  geographical location 
E)  ecological job 
A)  function 
B)  habitat 
C)  ecological niche 
D)  geographical location 
E)  ecological job

Question 4

Use the figure above to answer the following question(s).
-What does region E represent?

Accepted Answer

Region E represents

Question 5

Many of the earth's plant species depend on ____ to pollinate their flowers.

Accepted Answer

A)  small rodents 
B)  large mammals 
C)  amphibians 
D)  insects 
E)  humans 
A)  small rodents 
B)  large mammals 
C)  amphibians 
D)  insects 
E)  humans

Question 6

A species with a broad niche is considered a(n)____.

Accepted Answer

A)  endemic species 
B)  endangered species 
C)  specialist species 
D)  native species 
E)  generalist species 
A)  endemic species 
B)  endangered species 
C)  specialist species 
D)  native species 
E)  generalist species

Question 7

Which of the following does not describe an element of an ecological niche?

Accepted Answer

A)  the place where the species lives 
B)  how much water the species needs 
C)  how much sunlight the species needs 
D)  how much space the species needs 
E)  temperatures the species can tolerate 
A)  the place where the species lives 
B)  how much water the species needs 
C)  how much sunlight the species needs 
D)  how much space the species needs 
E)  temperatures the species can tolerate

Question 8

Which of the following is least associated with biodiversity?

Accepted Answer

A)  functional diversity 
B)  genetic diversity 
C)  geological diversity 
D)  ecological diversity 
E)  species diversity 
A)  functional diversity 
B)  genetic diversity 
C)  geological diversity 
D)  ecological diversity 
E)  species diversity

Question 9

From a scientific point of view,which of the following is true?

Accepted Answer

A)  Evolution leads to survival of the strongest. 
B)  Evolution leads to survival of the most valuable. 
C)  Organisms develop traits because they need them. 
D)  Fitness is a matter of reproductive success. 
E)  Evolution follows a plan of nature. 
A)  Evolution leads to survival of the strongest. 
B)  Evolution leads to survival of the most valuable. 
C)  Organisms develop traits because they need them. 
D)  Fitness is a matter of reproductive success. 
E)  Evolution follows a plan of nature.

Question 10

The process whereby the earth's life changes over time through changes in genes of populations of organisms in succeeding generations is called ____.

Accepted Answer

A)  emigration 
B)  mutation 
C)  natural selection 
D)  evolution 
E)  genetic drift 
A)  emigration 
B)  mutation 
C)  natural selection 
D)  evolution 
E)  genetic drift

Question 11

Mass extinctions,with 25-95% of species going extinct,have occurred how many times in the history of the earth?

Accepted Answer

A)  1 or 2 
B)  3-5 
C)  6-8 
D)  9-12 
E)  20-23 
A)  1 or 2 
B)  3-5 
C)  6-8 
D)  9-12 
E)  20-23

Question 12

Most mutations occur because of exposure to artificial external agents,such as radiation.

Accepted Answer

A) True 
 B)False

Question 13

Genetic variability in a population is the result of ____________________.

Accepted Answer

The answer of Genetic variability in a population is the...

Question 14

The number of species on the planet at any time is a result of the interaction between the processes of ____________________ and ____________________.

Accepted Answer

speciation

Question 15

A temperate rain forest is likely to have high species evenness and low species richness.

Accepted Answer

A) True 
 B)False

Question 16

Large regions such as forests,deserts,and grasslands,with distinct climates and species,are called _______________.

Accepted Answer

The answer of Large regions such as forests,deserts,and grasslands,with distinct...

Question 17

According to the International Union for Conservation of Nature (IUCN),about ____% of all known amphibian species are threatened with extinction.

Accepted Answer

A)  15 
B)  24 
C)  33 
D)  49 
E)  67 
A)  15 
B)  24 
C)  33 
D)  49 
E)  67

Question 18

Which of the following is true of specialist species?

Accepted Answer

A)  They can live in many different places. 
B)  They can eat a wide variety of foods. 
C)  They can tolerate a narrow range of climatic conditions. 
D)  They can tolerate a wide range of environmental conditions. 
E)  They are less prone to extinction. 
A)  They can live in many different places. 
B)  They can eat a wide variety of foods. 
C)  They can tolerate a narrow range of climatic conditions. 
D)  They can tolerate a wide range of environmental conditions. 
E)  They are less prone to extinction.

Question 19

What is the variety of processes,including matter cycling and energy flow within ecosystems,which result from species interacting with one another in food webs?

Accepted Answer

A)  functional diversity 
B)  genetic diversity 
C)  intellectual diversity 
D)  ecosystem diversity 
E)  species diversity 
A)  functional diversity 
B)  genetic diversity 
C)  intellectual diversity 
D)  ecosystem diversity 
E)  species diversity

Question 20

Biodiversity is a vital part of the natural capital that sustains all life.

Accepted Answer

A) True 
 B)False

Exam 4: Biodiversity and Evolution

____________________ diversity is the most obvious component of biodiversity.

The loss of a(n)____________________ species can lead to population crashes and extinctions of other species in a community that depend on it.

The role a species plays in its ecosystem is its ____.

Use the figure above to answer the following question(s). -What does region E represent?

Many of the earth's plant species depend on ____ to pollinate their flowers.

A species with a broad niche is considered a(n)____.

Which of the following does not describe an element of an ecological niche?

Which of the following is least associated with biodiversity?

From a scientific point of view,which of the following is true?

The process whereby the earth's life changes over time through changes in genes of populations of organisms in succeeding generations is called ____.

Mass extinctions,with 25-95% of species going extinct,have occurred how many times in the history of the earth?

Most mutations occur because of exposure to artificial external agents,such as radiation.

Genetic variability in a population is the result of ____________________.

The number of species on the planet at any time is a result of the interaction between the processes of ____________________ and ____________________.

A temperate rain forest is likely to have high species evenness and low species richness.

Large regions such as forests,deserts,and grasslands,with distinct climates and species,are called _______________.

According to the International Union for Conservation of Nature (IUCN),about ____% of all known amphibian species are threatened with extinction.

Which of the following is true of specialist species?

What is the variety of processes,including matter cycling and energy flow within ecosystems,which result from species interacting with one another in food webs?

Biodiversity is a vital part of the natural capital that sustains all life.

Environmental Problems, their Causes, and Sustainability

Science, matter, energy, and Systems

Ecosystems: What Are They and How Do They Work

Biodiversity, species Interactions, and Population Control

The Human Population and Its Impact

Climate and Biodiversity

Aquatic Biodiversity

Sustaining Biodiversity: The Species Approach

Sustaining Terrestrial Biodiversity: The Ecosystem Approach

Sustaining Aquatic Biodiversity

Food, soil, and Pest Management

Water Resources

Geology and Nonrenewable Mineral Resources

Nonrenewable Energy

Energy Efficiency and Renewable Energy

Environmental Hazards and Human Health

Air Pollution

Climate Disruption and Ozone Depletion

Water Pollution

Solid and Hazardous Waste

Cities and Sustainability

Economics, environment, and Sustainability

Politics, environment, and Sustainability

Environmental Worldviews, ethics, and Sustainability

Filters

The number of species on the planet at any time is a result of the interaction between the processes of and .