The variety of life on earth is defined as biodiversity. The genetic diversity, species diversity and ecosystem diversity are the three levels of biodiversity. The amount of variation that occurs in a species is known as genetic variation .

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Answer 1

Question

Chapter 40, Problem 1MCQ

Summary Introduction

Introduction:

The variety of life on earth is defined as biodiversity. The genetic diversity, species diversity and ecosystem diversity are the three levels of biodiversity. The amount of variation that occurs in a species is known as genetic variation.

Expert Solution & Answer

Answer to Problem 1MCQ

Correct answer:

Earthquakes are not the reason for the loss of biodiversity. Therefore, option a. is correct.

Explanation of Solution

Reason for the correct statement:

The loss of biodiversity is because of the habitat destruction, non-native species and over-exploitation. Biodiversity includes the variation in species, not the number of individuals, so it is not exploited by natural disasters.

Option a. is given as “Natural disasters such as earthquakes”.

As, “Natural disasters, such as earthquakes is not one of the main cause of today’s biodiversity crisis”, is the right answer.

Hence, the option a. is correct.

Reasons for the incorrect statements:

Option b. is given as “Habitat destruction and degradation”.

Habitat destruction involves the cutting of trees from large areas that is also known as deforestation. As the plants absorb carbon-dioxide and release oxygen, this maintains the cycle of gases in animals. Deforestation may result into oxygen sink which affects the diversity of species. The cutting of trees also leads to the soil erosion, which disturbs the plant species. So, it is a wrong answer.

Option c. is given as “Overexploitation”.

Overexploitation of species involves harvesting the members of species faster than they can reproduce. This is one of the main causes of biodiversity exploitation. So, it is a wrong answer.

Option d. is given as “Introduction of nonnative species”.

When new species enter a new location, they affect the local habitat and are known as nonnative species. These new species are not related to existing species and they may disturb the biodiversity. So, it is a wrong answer.

Hence, options b., c., and d. are incorrect.

Conclusion

The loss of biodiversity is due to the destruction and degradation of habitat, fast harvesting of the members of species and the involvement of invasive species.

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The Snapdragon is a popular garden flower that comes in a variety of colours, including red, yellow, and orange. The genotypes and associated phenotypes for some of these flowers are as follows: aabb: yellow AABB, AABb, AaBb, and AaBB: red AAbb and Aabb: orange aaBB: yellow aaBb: ? Based on this information, what would the phenotype of a Snapdragon with the genotype aaBb be and why? Question 21 options: orange because A is epistatic to B yellow because A is epistatic to B red because B is epistatic to A orange because B is epistatic to A red because A is epistatic to B yellow because B is epistatic to A

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Answer 2

Question

Chapter 40, Problem 1MCQ

Summary Introduction

Introduction:

The variety of life on earth is defined as biodiversity. The genetic diversity, species diversity and ecosystem diversity are the three levels of biodiversity. The amount of variation that occurs in a species is known as genetic variation.

Expert Solution & Answer

Answer to Problem 1MCQ

Correct answer:

Earthquakes are not the reason for the loss of biodiversity. Therefore, option a. is correct.

Explanation of Solution

Reason for the correct statement:

The loss of biodiversity is because of the habitat destruction, non-native species and over-exploitation. Biodiversity includes the variation in species, not the number of individuals, so it is not exploited by natural disasters.

Option a. is given as “Natural disasters such as earthquakes”.

As, “Natural disasters, such as earthquakes is not one of the main cause of today’s biodiversity crisis”, is the right answer.

Hence, the option a. is correct.

Reasons for the incorrect statements:

Option b. is given as “Habitat destruction and degradation”.

Habitat destruction involves the cutting of trees from large areas that is also known as deforestation. As the plants absorb carbon-dioxide and release oxygen, this maintains the cycle of gases in animals. Deforestation may result into oxygen sink which affects the diversity of species. The cutting of trees also leads to the soil erosion, which disturbs the plant species. So, it is a wrong answer.

Option c. is given as “Overexploitation”.

Overexploitation of species involves harvesting the members of species faster than they can reproduce. This is one of the main causes of biodiversity exploitation. So, it is a wrong answer.

Option d. is given as “Introduction of nonnative species”.

When new species enter a new location, they affect the local habitat and are known as nonnative species. These new species are not related to existing species and they may disturb the biodiversity. So, it is a wrong answer.

Hence, options b., c., and d. are incorrect.

Conclusion

The loss of biodiversity is due to the destruction and degradation of habitat, fast harvesting of the members of species and the involvement of invasive species.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Question

Chapter 40, Problem 1MCQ

Summary Introduction

Introduction:

The variety of life on earth is defined as biodiversity. The genetic diversity, species diversity and ecosystem diversity are the three levels of biodiversity. The amount of variation that occurs in a species is known as genetic variation.

Expert Solution & Answer

Answer to Problem 1MCQ

Correct answer:

Earthquakes are not the reason for the loss of biodiversity. Therefore, option a. is correct.

Explanation of Solution

Reason for the correct statement:

The loss of biodiversity is because of the habitat destruction, non-native species and over-exploitation. Biodiversity includes the variation in species, not the number of individuals, so it is not exploited by natural disasters.

Option a. is given as “Natural disasters such as earthquakes”.

As, “Natural disasters, such as earthquakes is not one of the main cause of today’s biodiversity crisis”, is the right answer.

Hence, the option a. is correct.

Reasons for the incorrect statements:

Option b. is given as “Habitat destruction and degradation”.

Habitat destruction involves the cutting of trees from large areas that is also known as deforestation. As the plants absorb carbon-dioxide and release oxygen, this maintains the cycle of gases in animals. Deforestation may result into oxygen sink which affects the diversity of species. The cutting of trees also leads to the soil erosion, which disturbs the plant species. So, it is a wrong answer.

Option c. is given as “Overexploitation”.

Overexploitation of species involves harvesting the members of species faster than they can reproduce. This is one of the main causes of biodiversity exploitation. So, it is a wrong answer.

Option d. is given as “Introduction of nonnative species”.

When new species enter a new location, they affect the local habitat and are known as nonnative species. These new species are not related to existing species and they may disturb the biodiversity. So, it is a wrong answer.

Hence, options b., c., and d. are incorrect.

Conclusion

The loss of biodiversity is due to the destruction and degradation of habitat, fast harvesting of the members of species and the involvement of invasive species.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Question

Chapter 40, Problem 1MCQ

Summary Introduction

Introduction:

The variety of life on earth is defined as biodiversity. The genetic diversity, species diversity and ecosystem diversity are the three levels of biodiversity. The amount of variation that occurs in a species is known as genetic variation.

Expert Solution & Answer

Answer to Problem 1MCQ

Correct answer:

Earthquakes are not the reason for the loss of biodiversity. Therefore, option a. is correct.

Explanation of Solution

Reason for the correct statement:

The loss of biodiversity is because of the habitat destruction, non-native species and over-exploitation. Biodiversity includes the variation in species, not the number of individuals, so it is not exploited by natural disasters.

Option a. is given as “Natural disasters such as earthquakes”.

As, “Natural disasters, such as earthquakes is not one of the main cause of today’s biodiversity crisis”, is the right answer.

Hence, the option a. is correct.

Reasons for the incorrect statements:

Option b. is given as “Habitat destruction and degradation”.

Habitat destruction involves the cutting of trees from large areas that is also known as deforestation. As the plants absorb carbon-dioxide and release oxygen, this maintains the cycle of gases in animals. Deforestation may result into oxygen sink which affects the diversity of species. The cutting of trees also leads to the soil erosion, which disturbs the plant species. So, it is a wrong answer.

Option c. is given as “Overexploitation”.

Overexploitation of species involves harvesting the members of species faster than they can reproduce. This is one of the main causes of biodiversity exploitation. So, it is a wrong answer.

Option d. is given as “Introduction of nonnative species”.

When new species enter a new location, they affect the local habitat and are known as nonnative species. These new species are not related to existing species and they may disturb the biodiversity. So, it is a wrong answer.

Hence, options b., c., and d. are incorrect.

Conclusion

The loss of biodiversity is due to the destruction and degradation of habitat, fast harvesting of the members of species and the involvement of invasive species.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Chapter 40, Problem 1MCQ

Summary Introduction

Introduction:

The variety of life on earth is defined as biodiversity. The genetic diversity, species diversity and ecosystem diversity are the three levels of biodiversity. The amount of variation that occurs in a species is known as genetic variation.

Expert Solution & Answer

Answer to Problem 1MCQ

Correct answer:

Earthquakes are not the reason for the loss of biodiversity. Therefore, option a. is correct.

Explanation of Solution

Reason for the correct statement:

The loss of biodiversity is because of the habitat destruction, non-native species and over-exploitation. Biodiversity includes the variation in species, not the number of individuals, so it is not exploited by natural disasters.

Option a. is given as “Natural disasters such as earthquakes”.

As, “Natural disasters, such as earthquakes is not one of the main cause of today’s biodiversity crisis”, is the right answer.

Hence, the option a. is correct.

Reasons for the incorrect statements:

Option b. is given as “Habitat destruction and degradation”.

Habitat destruction involves the cutting of trees from large areas that is also known as deforestation. As the plants absorb carbon-dioxide and release oxygen, this maintains the cycle of gases in animals. Deforestation may result into oxygen sink which affects the diversity of species. The cutting of trees also leads to the soil erosion, which disturbs the plant species. So, it is a wrong answer.

Option c. is given as “Overexploitation”.

Overexploitation of species involves harvesting the members of species faster than they can reproduce. This is one of the main causes of biodiversity exploitation. So, it is a wrong answer.

Option d. is given as “Introduction of nonnative species”.

When new species enter a new location, they affect the local habitat and are known as nonnative species. These new species are not related to existing species and they may disturb the biodiversity. So, it is a wrong answer.

Hence, options b., c., and d. are incorrect.

Conclusion

The loss of biodiversity is due to the destruction and degradation of habitat, fast harvesting of the members of species and the involvement of invasive species.

Answer 6

Chapter 40, Problem 1MCQ

Summary Introduction

Introduction:

The variety of life on earth is defined as biodiversity. The genetic diversity, species diversity and ecosystem diversity are the three levels of biodiversity. The amount of variation that occurs in a species is known as genetic variation.

Expert Solution & Answer

Answer to Problem 1MCQ

Correct answer:

Earthquakes are not the reason for the loss of biodiversity. Therefore, option a. is correct.

Explanation of Solution

Reason for the correct statement:

The loss of biodiversity is because of the habitat destruction, non-native species and over-exploitation. Biodiversity includes the variation in species, not the number of individuals, so it is not exploited by natural disasters.

Option a. is given as “Natural disasters such as earthquakes”.

As, “Natural disasters, such as earthquakes is not one of the main cause of today’s biodiversity crisis”, is the right answer.

Hence, the option a. is correct.

Reasons for the incorrect statements:

Option b. is given as “Habitat destruction and degradation”.

Habitat destruction involves the cutting of trees from large areas that is also known as deforestation. As the plants absorb carbon-dioxide and release oxygen, this maintains the cycle of gases in animals. Deforestation may result into oxygen sink which affects the diversity of species. The cutting of trees also leads to the soil erosion, which disturbs the plant species. So, it is a wrong answer.

Option c. is given as “Overexploitation”.

Overexploitation of species involves harvesting the members of species faster than they can reproduce. This is one of the main causes of biodiversity exploitation. So, it is a wrong answer.

Option d. is given as “Introduction of nonnative species”.

When new species enter a new location, they affect the local habitat and are known as nonnative species. These new species are not related to existing species and they may disturb the biodiversity. So, it is a wrong answer.

Hence, options b., c., and d. are incorrect.

Conclusion

The loss of biodiversity is due to the destruction and degradation of habitat, fast harvesting of the members of species and the involvement of invasive species.

Answer 7

Chapter 40, Problem 1MCQ

Summary Introduction

Introduction:

The variety of life on earth is defined as biodiversity. The genetic diversity, species diversity and ecosystem diversity are the three levels of biodiversity. The amount of variation that occurs in a species is known as genetic variation.

Answer 8

Expert Solution & Answer

Answer to Problem 1MCQ

Correct answer:

Earthquakes are not the reason for the loss of biodiversity. Therefore, option a. is correct.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Reason for the correct statement:

The loss of biodiversity is because of the habitat destruction, non-native species and over-exploitation. Biodiversity includes the variation in species, not the number of individuals, so it is not exploited by natural disasters.

Option a. is given as “Natural disasters such as earthquakes”.

As, “Natural disasters, such as earthquakes is not one of the main cause of today’s biodiversity crisis”, is the right answer.

Hence, the option a. is correct.

Reasons for the incorrect statements:

Option b. is given as “Habitat destruction and degradation”.

Habitat destruction involves the cutting of trees from large areas that is also known as deforestation. As the plants absorb carbon-dioxide and release oxygen, this maintains the cycle of gases in animals. Deforestation may result into oxygen sink which affects the diversity of species. The cutting of trees also leads to the soil erosion, which disturbs the plant species. So, it is a wrong answer.

Option c. is given as “Overexploitation”.

Overexploitation of species involves harvesting the members of species faster than they can reproduce. This is one of the main causes of biodiversity exploitation. So, it is a wrong answer.

Option d. is given as “Introduction of nonnative species”.

When new species enter a new location, they affect the local habitat and are known as nonnative species. These new species are not related to existing species and they may disturb the biodiversity. So, it is a wrong answer.

Hence, options b., c., and d. are incorrect.

Answer 12

Conclusion

The loss of biodiversity is due to the destruction and degradation of habitat, fast harvesting of the members of species and the involvement of invasive species.

Answer 13

Ch. 40.1 - Prob. 1MC Ch. 40.1 - Prob. 2MC Ch. 40.1 - Prob. 3MC Ch. 40.1 - Prob. 4MC Ch. 40.2 - Prob. 1MC Ch. 40.2 - Prob. 2MC Ch. 40.2 - Prob. 3MC Ch. 40.3 - Prob. 1MC Ch. 40.3 - What are major sources of industrial smog,...Ch. 40.3 - Prob. 3MC

The variety of life on earth is defined as biodiversity. The genetic diversity, species diversity and ecosystem diversity are the three levels of biodiversity. The amount of variation that occurs in a species is known as genetic variation .

Concept explainers

Introduction:

The variety of life on earth is defined as biodiversity. The genetic diversity, species diversity and ecosystem diversity are the three levels of biodiversity. The amount of variation that occurs in a species is known as genetic variation.

Answer to Problem 1MCQ

Explanation of Solution

Want to see more full solutions like this?

Chapter 40 Solutions

The variety of life on earth is defined as biodiversity. The genetic diversity, species diversity and ecosystem diversity are the three levels of biodiversity. The amount of variation that occurs in a species is known as genetic variation .

Concept explainers

Introduction: The variety of life on earth is defined as biodiversity. The genetic diversity, species diversity and ecosystem diversity are the three levels of biodiversity. The amount of variation that occurs in a species is known as genetic variation.

Answer to Problem 1MCQ

Explanation of Solution

Want to see more full solutions like this?

Chapter 40 Solutions

Introduction:

The variety of life on earth is defined as biodiversity. The genetic diversity, species diversity and ecosystem diversity are the three levels of biodiversity. The amount of variation that occurs in a species is known as genetic variation.