Question 1

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 C

Question 2

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. C

Question 3

What adaptation has allowed humans to increase our chances of survival and reproduction through gripping and using tools?

Accepted Answer

A) walking upright on two legs 
B) physical strength 
C) complex brain 
D) opposable thumbs 
E) five digits on each hand 
A) walking upright on two legs 
B) physical strength 
C) complex brain 
D) opposable thumbs 
E) five digits on each hand D

Question 4

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...

Question 5

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 6

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 7

When a species becomes extinct over a large region, but not worldwide, it is called ____.

Accepted Answer

A) background extinction 
B) partial extinction 
C) global extinction 
D) mass extinction 
E) local extinction 
A) background extinction 
B) partial extinction 
C) global extinction 
D) mass extinction 
E) local extinction

Question 8

Scientists are now able to produce desirable traits in some organisms by adding, deleting, or changing segments of its DNA. This process is known as ____.

Accepted Answer

A) genetic modification 
B) genetic engineering 
C) genetic drift 
D) mutation 
E) speciation 
A) genetic modification 
B) genetic engineering 
C) genetic drift 
D) mutation 
E) speciation

Question 9

Use the figure above to answer the following question(s). What does the height of each of the curves on the graph represent?

Accepted Answer

The height represent

Question 10

Most people do not understand why it is important for humans to be concerned about preventing the extinction of amphibian species when there are so many, seemingly more pressing issues. List three reasons why people should be interested in maintaining amphibians and explain why each reason is important.

Accepted Answer

Humans should care about preventing the

Question 11

In some habitats, the extinction of certain amphibian species could lead to the ____ of certain species of other amphibians, aquatic insects, reptiles, birds, fish, and mammals.

Accepted Answer

A) natural selection 
B) speciation 
C) coevolution 
D) proliferation 
E) extinction 
A) natural selection 
B) speciation 
C) coevolution 
D) proliferation 
E) extinction

Question 12

Survival of the fittest refers to those individuals that leave the most descendants.

Accepted Answer

A) True 
 B)False

Question 13

Approximately 200-250 million years ago, all of the earth's present day continents were connected in a super continent known as ____________________.

Accepted Answer

The answer of Approximately 200-250 million years ago, all of...

Question 14

A measure of the relative abundance, or the comparative numbers of individuals of each species present, is called ____.

Accepted Answer

A) species richness 
B) species abundance 
C) species diversity 
D) species evenness 
E) species counts 
A) species richness 
B) species abundance 
C) species diversity 
D) species evenness 
E) species counts

Question 15

In geologic history, mass extinctions have been followed by an increase in species diversity.

Accepted Answer

A) True 
 B)False

Question 16

Charles Darwin and ____________________ both came up with the concept of natural selection as the mechanism for biological evolution.

Accepted Answer

WallaceAlf

Question 17

Geographic isolation may result from ____.

Accepted Answer

A) reproductive isolation 
B) artificial selection 
C) mountain ranges 
D) extinction 
E) speciation 
A) reproductive isolation 
B) artificial selection 
C) mountain ranges 
D) extinction 
E) speciation

Question 18

Changes in the DNA molecules of a gene in any cell that can be inherited by offspring are called ____.

Accepted Answer

A) adaptations 
B) mutagens 
C) mutations 
D) variable traits 
E) selected traits 
A) adaptations 
B) mutagens 
C) mutations 
D) variable traits 
E) selected traits

Question 19

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

Accepted Answer

A) True 
 B)False

Question 20

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

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

Which of the following is true of specialist species?

What adaptation has allowed humans to increase our chances of survival and reproduction through gripping and using tools?

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

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

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

When a species becomes extinct over a large region, but not worldwide, it is called ____.

Scientists are now able to produce desirable traits in some organisms by adding, deleting, or changing segments of its DNA. This process is known as ____.

Use the figure above to answer the following question(s). What does the height of each of the curves on the graph represent?

In some habitats, the extinction of certain amphibian species could lead to the ____ of certain species of other amphibians, aquatic insects, reptiles, birds, fish, and mammals.

Survival of the fittest refers to those individuals that leave the most descendants.

Approximately 200-250 million years ago, all of the earth's present day continents were connected in a super continent known as ____________________.

A measure of the relative abundance, or the comparative numbers of individuals of each species present, is called ____.

In geologic history, mass extinctions have been followed by an increase in species diversity.

Charles Darwin and ____________________ both came up with the concept of natural selection as the mechanism for biological evolution.

Geographic isolation may result from ____.

Changes in the DNA molecules of a gene in any cell that can be inherited by offspring are called ____.

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

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

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

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Exam 4: Biodiversity and Evolution

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

Which of the following is true of specialist species?

What adaptation has allowed humans to increase our chances of survival and reproduction through gripping and using tools?

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

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

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

When a species becomes extinct over a large region, but not worldwide, it is called ____.

Scientists are now able to produce desirable traits in some organisms by adding, deleting, or changing segments of its DNA. This process is known as ____.

Use the figure above to answer the following question(s). What does the height of each of the curves on the graph represent?

In some habitats, the extinction of certain amphibian species could lead to the ____ of certain species of other amphibians, aquatic insects, reptiles, birds, fish, and mammals.

Survival of the fittest refers to those individuals that leave the most descendants.

Approximately 200-250 million years ago, all of the earth's present day continents were connected in a super continent known as ____________________.

A measure of the relative abundance, or the comparative numbers of individuals of each species present, is called ____.

In geologic history, mass extinctions have been followed by an increase in species diversity.

Charles Darwin and ____________________ both came up with the concept of natural selection as the mechanism for biological evolution.

Geographic isolation may result from ____.

Changes in the DNA molecules of a gene in any cell that can be inherited by offspring are called ____.

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

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

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

Filters