Question 1

New species arise when a mutation occurs and an organism is born much different than its parents.​

Accepted Answer

A) True 
 B)False

Question 2

​An intertidal species of sea star helps to maintain the diversity of the intertidal region by controlling the mussel population.Without the sea star,the mussel population would crowd out other species and take over their territory.The sea star could be called a(n)____.

Accepted Answer

A)  ​indicator species 
B)  ​keystone species 
C)  ​foundation species 
D)  ​aggressive species 
E)  ​repressor species 
A)  ​indicator species 
B)  ​keystone species 
C)  ​foundation species 
D)  ​aggressive species 
E)  ​repressor species

Question 3

____ is a technology that enables scientists to make new sequences of DNA and to use such genetic information to design and create new cells,tissues,organisms,and devices,and to redesign natural biological systems.​

Accepted Answer

A)  ​Synthetic biology 
B)  ​Artificial selection 
C)  ​Reproductive isolation 
D)  ​Speciation 
E)  ​Adaptation 
A)  ​Synthetic biology 
B)  ​Artificial selection 
C)  ​Reproductive isolation 
D)  ​Speciation 
E)  ​Adaptation

Question 4

​Generalist species are more prone to extinction when environmental changes change rapidly than specialist species.

Accepted Answer

A) True 
 B)False

Question 5

Desert,prairie grassland,and coniferous forest with distinct climates and certain species are all examples of ____________________.​

Accepted Answer

The answer of Desert,prairie grassland,and coniferous forest with distinct climates...

Question 6

​Before humans evolved,species never went extinct.

Accepted Answer

A) True 
 B)False

Question 7

​Species diversity is important because ____.

Accepted Answer

A)  ​ecosystems with high levels of species diversity tend to be more stable 
B)  ​if a few species go extinct,the consequences are not that long-term 
C)  ​it ensures that there's plenty of competition for niches,resulting in fitter species 
D)  ​functional diversity is lower when species diversity is high 
E)  ​it increases ecosystem diversity 
A)  ​ecosystems with high levels of species diversity tend to be more stable 
B)  ​if a few species go extinct,the consequences are not that long-term 
C)  ​it ensures that there's plenty of competition for niches,resulting in fitter species 
D)  ​functional diversity is lower when species diversity is high 
E)  ​it increases ecosystem diversity

Question 8

Humans have used ____ to change the genetic characteristics of populations to generate individuals with desired traits.​

Accepted Answer

A)  ​specialist species 
B)  ​ecological niches 
C)  ​keystone species 
D)  ​artificial selection 
E)  ​subjective selection 
A)  ​specialist species 
B)  ​ecological niches 
C)  ​keystone species 
D)  ​artificial selection 
E)  ​subjective selection

Question 9

Which characteristic must be true in order for a trait to be impacted by the forces of natural selection and then play a role in the process of biological evolution?​

Accepted Answer

A)  ​The trait must be the result of environmental conditions. 
B)  ​The trait must be genetically based. 
C)  ​The trait must impact the social rank of its possessor. 
D)  ​The trait must be a physical characteristic of the organism. 
E)  ​The trait must be a behavioral characteristic of the organism. 
A)  ​The trait must be the result of environmental conditions. 
B)  ​The trait must be genetically based. 
C)  ​The trait must impact the social rank of its possessor. 
D)  ​The trait must be a physical characteristic of the organism. 
E)  ​The trait must be a behavioral characteristic of the organism.

Question 10

​____ is the most common cause of speciation.

Accepted Answer

A)  ​Mass extinction 
B)  ​Geographic isolation 
C)  ​The arrival of a nonnative species 
D)  ​An overlap between ecological niches 
E)  ​The loss of a keystone species 
A)  ​Mass extinction 
B)  ​Geographic isolation 
C)  ​The arrival of a nonnative species 
D)  ​An overlap between ecological niches 
E)  ​The loss of a keystone species

Question 11

Which statement is true with regard to keystone species?​

Accepted Answer

A)  ​Animals can be keystone species,but plants cannot. 
B)  ​Top predators can be keystone species,but other animals cannot. 
C)  ​Insects can never be keystone species because they are pests. 
D)  ​Some keystone species are more vulnerable to extinction than other species. 
E)  ​A species must have a very large population size in order to be a keystone species. 
A)  ​Animals can be keystone species,but plants cannot. 
B)  ​Top predators can be keystone species,but other animals cannot. 
C)  ​Insects can never be keystone species because they are pests. 
D)  ​Some keystone species are more vulnerable to extinction than other species. 
E)  ​A species must have a very large population size in order to be a keystone species.

Question 12

Match the type of diversity with the proper choice below.
-​Caribbean snails of the same population exhibit a variety of shell colors and banding patterns.​

Accepted Answer

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

Question 13

​____ is the variety of processes such as energy flow and matter cycling that occur within ecosystems as species interact with one another in food webs.

Accepted Answer

A)  ​Biome diversity 
B)  ​Genetic diversity 
C)  Functional diversity 
D)  ​Ecosystem diversity 
E)  ​Species diversity 
A)  ​Biome diversity 
B)  ​Genetic diversity 
C)  Functional diversity 
D)  ​Ecosystem diversity 
E)  ​Species diversity

Question 14

Habitat loss and fragmentation is not a major threat to amphibians.​

Accepted Answer

A) True 
 B)False

Question 15

Match the type of diversity with the proper choice below.
-A wetland ecosystem cycles nitrogen as well as phosphorus.​

Accepted Answer

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

Question 16

American alligators dig holes that many other species rely on.​

Accepted Answer

A) True 
 B)False

Question 17

Genes mutate,individuals are selected,and populations evolve.​

Accepted Answer

A) True 
 B)False

Question 18

The variety of genes found in a species or population is known as ____.​

Accepted Answer

A)  ​species diversity 
B)  ​genetic diversity 
C)  ​functional diversity 
D)  ​ecological diversity 
E)  ​molecular diversity 
A)  ​species diversity 
B)  ​genetic diversity 
C)  ​functional diversity 
D)  ​ecological diversity 
E)  ​molecular diversity

Question 19

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

Accepted Answer

​ Biologic

Question 20

​Even if a beneficial heritable trait is present in a population,the population's ability to adapt may be limited by its reproductive capacity.

Accepted Answer

A) True 
 B)False

New species arise when a mutation occurs and an organism is born much different than its parents.

An intertidal species of sea star helps to maintain the diversity of the intertidal region by controlling the mussel population.Without the sea star,the mussel population would crowd out other species and take over their territory.The sea star could be called a(n)____.

____ is a technology that enables scientists to make new sequences of DNA and to use such genetic information to design and create new cells,tissues,organisms,and devices,and to redesign natural biological systems.

Generalist species are more prone to extinction when environmental changes change rapidly than specialist species.

Desert,prairie grassland,and coniferous forest with distinct climates and certain species are all examples of ____________________.

Before humans evolved,species never went extinct.

Species diversity is important because ____.

Humans have used ____ to change the genetic characteristics of populations to generate individuals with desired traits.

Which characteristic must be true in order for a trait to be impacted by the forces of natural selection and then play a role in the process of biological evolution?

____ is the most common cause of speciation.

Which statement is true with regard to keystone species?

Match the type of diversity with the proper choice below. -Caribbean snails of the same population exhibit a variety of shell colors and banding patterns.

____ is the variety of processes such as energy flow and matter cycling that occur within ecosystems as species interact with one another in food webs.

Habitat loss and fragmentation is not a major threat to amphibians.

Match the type of diversity with the proper choice below. -A wetland ecosystem cycles nitrogen as well as phosphorus.

American alligators dig holes that many other species rely on.

Genes mutate,individuals are selected,and populations evolve.

The variety of genes found in a species or population is known as ____.

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

Even if a beneficial heritable trait is present in a population,the population's ability to adapt may be limited by its reproductive capacity.

Environmental Problems - Their Causes - and Sustainability

Science - Matter - and Energy

Ecosystems - What Are They and How Do They Work

Biodiversity - Species Interactions - and Population Control

The Human Population and Urbanization

Climate and Biodiversity

Sustaining Biodiversity - the Species Approach

Sustaining Biodiversity - the Ecosystem Approach

Food - Soil - and Pest Management

Water Resources and Water Pollution

Geology and Nonrenewable Minerals

Energy

Environmental Hazards and Human Health

Air Pollution Climate Change and Ozone Depletion

Solid and Hazardous Waste

Environmental Economics Politics and Worldviews

Filters

Exam 4: Biodiversity and Evolution

New species arise when a mutation occurs and an organism is born much different than its parents.​

​An intertidal species of sea star helps to maintain the diversity of the intertidal region by controlling the mussel population.Without the sea star,the mussel population would crowd out other species and take over their territory.The sea star could be called a(n)____.

____ is a technology that enables scientists to make new sequences of DNA and to use such genetic information to design and create new cells,tissues,organisms,and devices,and to redesign natural biological systems.​

​Generalist species are more prone to extinction when environmental changes change rapidly than specialist species.

Desert,prairie grassland,and coniferous forest with distinct climates and certain species are all examples of ____________________.​

​Before humans evolved,species never went extinct.

​Species diversity is important because ____.

Humans have used ____ to change the genetic characteristics of populations to generate individuals with desired traits.​

Which characteristic must be true in order for a trait to be impacted by the forces of natural selection and then play a role in the process of biological evolution?​

​____ is the most common cause of speciation.

Which statement is true with regard to keystone species?​

Match the type of diversity with the proper choice below. -​Caribbean snails of the same population exhibit a variety of shell colors and banding patterns.​

​____ is the variety of processes such as energy flow and matter cycling that occur within ecosystems as species interact with one another in food webs.

Habitat loss and fragmentation is not a major threat to amphibians.​

Match the type of diversity with the proper choice below. -A wetland ecosystem cycles nitrogen as well as phosphorus.​

American alligators dig holes that many other species rely on.​

Genes mutate,individuals are selected,and populations evolve.​

The variety of genes found in a species or population is known as ____.​

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

​Even if a beneficial heritable trait is present in a population,the population's ability to adapt may be limited by its reproductive capacity.

Environmental Problems - Their Causes - and Sustainability

Science - Matter - and Energy

Ecosystems - What Are They and How Do They Work

Biodiversity - Species Interactions - and Population Control

The Human Population and Urbanization

Climate and Biodiversity

Sustaining Biodiversity - the Species Approach

Sustaining Biodiversity - the Ecosystem Approach

Food - Soil - and Pest Management

Water Resources and Water Pollution

Geology and Nonrenewable Minerals

Energy

Environmental Hazards and Human Health

Air Pollution Climate Change and Ozone Depletion

Solid and Hazardous Waste

Environmental Economics Politics and Worldviews

Filters

New species arise when a mutation occurs and an organism is born much different than its parents.

An intertidal species of sea star helps to maintain the diversity of the intertidal region by controlling the mussel population.Without the sea star,the mussel population would crowd out other species and take over their territory.The sea star could be called a(n)____.

____ is a technology that enables scientists to make new sequences of DNA and to use such genetic information to design and create new cells,tissues,organisms,and devices,and to redesign natural biological systems.

Generalist species are more prone to extinction when environmental changes change rapidly than specialist species.

Desert,prairie grassland,and coniferous forest with distinct climates and certain species are all examples of ____________________.

Before humans evolved,species never went extinct.

Species diversity is important because ____.

Humans have used ____ to change the genetic characteristics of populations to generate individuals with desired traits.

Which characteristic must be true in order for a trait to be impacted by the forces of natural selection and then play a role in the process of biological evolution?

____ is the most common cause of speciation.

Which statement is true with regard to keystone species?

Match the type of diversity with the proper choice below. -Caribbean snails of the same population exhibit a variety of shell colors and banding patterns.

____ is the variety of processes such as energy flow and matter cycling that occur within ecosystems as species interact with one another in food webs.

Habitat loss and fragmentation is not a major threat to amphibians.

Match the type of diversity with the proper choice below. -A wetland ecosystem cycles nitrogen as well as phosphorus.

American alligators dig holes that many other species rely on.

Genes mutate,individuals are selected,and populations evolve.

The variety of genes found in a species or population is known as ____.

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

Even if a beneficial heritable trait is present in a population,the population's ability to adapt may be limited by its reproductive capacity.