Macroevolution refers to evolutionary changes that occur in multicellular organisms. produce new species and groups of species. occur over long periods of time. cause changes in allele frequencies. occur in large mammals.

Question

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Answer 1

Textbook Question

Chapter 20, Problem 1TY

Macroevolution refers to evolutionary changes that

occur in multicellular organisms.
produce new species and groups of species.
occur over long periods of time.
cause changes in allele frequencies.
occur in large mammals.

Expert Solution & Answer

Summary Introduction

Introduction:

Microevolution is the change in allele frequencies within a population over time. Microevolution is a result of mutations, natural selection, gene flow and genetic drift. In microevolution small differences in population occur compared to macroevolution. Microevolution over long period of time leads to speciation which is described under macroevolution.

Answer to Problem 1TY

The correct answersisoption (b) produce new species and groups of species and option

Explanation of Solution

Explanation/justification for the correct answer:

Option (b) − Macroevolution is the large-scale evolution which occurs at the level of species and above. It describes the differences between two closely related species; for instance, western meadowlark and eastern meadowlark birds. They are two different species even though the morphological characteristics are similar. They cannot mate due to reproductive isolation. Microevolution also describes that the all life forms are from a single origin. So, option (b) is the correct answer.

Explanation for incorrect answer:

Option (a) − Macroevolution is usually defined as the innovation of morphological innovations in multicellular organisms. But there are some microbial experimental evidences of macroevolution in unicellular level.

Option (c) − the changes observed in macroevolution occurs over long time period. The changes happen in microevolution occurs over a short period of time relatively to the changes occur in macroevolution in evolutionary wise. So option (c) is incorrect.

Option (d) causes changes in allele frequencies. Genetic information gets altered or rearranged in microevolution, not macroevolution. Alteration of genetic information leads to changes in allele frequencies. The microevolution occurs over a short time scale. The changes occur in genetic level causes the phenotypic changes which are naturally selected overtime. So, microevolution often lead to macroevolution. Option (d) is incorrect.

Option (e) occurs in large mammals. This option is incorrect as macroevolution can be taken place in almost every kind of population. Birds, fish, reptiles, bacteria etc.

Conclusion

Macroevolution refers to evolutionary changes that produce new species and group of species. So, option (b) is correct.

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Students have asked these similar questions

A sample of blood was taken from the above individual and prepared for haemoglobin analysis. However, when water was added the cells did not lyse and looked normal in size and shape. The technician suspected that they had may have made an error in the protocol – what is the most likely explanation? The cell membranes are more resistant than normal. An isotonic solution had been added instead of water. A solution of 0.1 M NaCl had been added instead of water. Not enough water had been added to the red blood cell pellet. The man had sickle-cell anaemia.

With reference to their absorption spectra of the oxy haemoglobin intact line) and deoxyhemoglobin (broken line) shown in Figure 2 below, how would you best explain the reason why there are differences in the major peaks of the spectra? Figure 2. SPECTRA OF OXYGENATED AND DEOXYGENATED HAEMOGLOBIN OBTAINED WITH THE RECORDING SPECTROPHOTOMETER 1.4 Abs < 0.8 06 0.4 400 420 440 460 480 500 520 540 560 580 600 nm 1. The difference in the spectra is due to a pH change in the deoxy-haemoglobin due to uptake of CO2- 2. There is more oxygen-carrying plasma in the oxy-haemoglobin sample. 3. The change in Mr due to oxygen binding causes the oxy haemoglobin to have a higher absorbance peak. 4. Oxy-haemoglobin is contaminated by carbaminohemoglobin, and therefore has a higher absorbance peak 5. Oxy-haemoglobin absorbs more light of blue wavelengths and less of red wavelengths than deoxy-haemoglobin

Answer 2

Textbook Question

Chapter 20, Problem 1TY

Macroevolution refers to evolutionary changes that

occur in multicellular organisms.
produce new species and groups of species.
occur over long periods of time.
cause changes in allele frequencies.
occur in large mammals.

Expert Solution & Answer

Summary Introduction

Introduction:

Microevolution is the change in allele frequencies within a population over time. Microevolution is a result of mutations, natural selection, gene flow and genetic drift. In microevolution small differences in population occur compared to macroevolution. Microevolution over long period of time leads to speciation which is described under macroevolution.

Answer to Problem 1TY

The correct answersisoption (b) produce new species and groups of species and option

Explanation of Solution

Explanation/justification for the correct answer:

Option (b) − Macroevolution is the large-scale evolution which occurs at the level of species and above. It describes the differences between two closely related species; for instance, western meadowlark and eastern meadowlark birds. They are two different species even though the morphological characteristics are similar. They cannot mate due to reproductive isolation. Microevolution also describes that the all life forms are from a single origin. So, option (b) is the correct answer.

Explanation for incorrect answer:

Option (a) − Macroevolution is usually defined as the innovation of morphological innovations in multicellular organisms. But there are some microbial experimental evidences of macroevolution in unicellular level.

Option (c) − the changes observed in macroevolution occurs over long time period. The changes happen in microevolution occurs over a short period of time relatively to the changes occur in macroevolution in evolutionary wise. So option (c) is incorrect.

Option (d) causes changes in allele frequencies. Genetic information gets altered or rearranged in microevolution, not macroevolution. Alteration of genetic information leads to changes in allele frequencies. The microevolution occurs over a short time scale. The changes occur in genetic level causes the phenotypic changes which are naturally selected overtime. So, microevolution often lead to macroevolution. Option (d) is incorrect.

Option (e) occurs in large mammals. This option is incorrect as macroevolution can be taken place in almost every kind of population. Birds, fish, reptiles, bacteria etc.

Conclusion

Macroevolution refers to evolutionary changes that produce new species and group of species. So, option (b) is correct.

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Answer 3

Textbook Question

Chapter 20, Problem 1TY

Macroevolution refers to evolutionary changes that

occur in multicellular organisms.
produce new species and groups of species.
occur over long periods of time.
cause changes in allele frequencies.
occur in large mammals.

Expert Solution & Answer

Summary Introduction

Introduction:

Microevolution is the change in allele frequencies within a population over time. Microevolution is a result of mutations, natural selection, gene flow and genetic drift. In microevolution small differences in population occur compared to macroevolution. Microevolution over long period of time leads to speciation which is described under macroevolution.

Answer to Problem 1TY

The correct answersisoption (b) produce new species and groups of species and option

Explanation of Solution

Explanation/justification for the correct answer:

Option (b) − Macroevolution is the large-scale evolution which occurs at the level of species and above. It describes the differences between two closely related species; for instance, western meadowlark and eastern meadowlark birds. They are two different species even though the morphological characteristics are similar. They cannot mate due to reproductive isolation. Microevolution also describes that the all life forms are from a single origin. So, option (b) is the correct answer.

Explanation for incorrect answer:

Option (a) − Macroevolution is usually defined as the innovation of morphological innovations in multicellular organisms. But there are some microbial experimental evidences of macroevolution in unicellular level.

Option (c) − the changes observed in macroevolution occurs over long time period. The changes happen in microevolution occurs over a short period of time relatively to the changes occur in macroevolution in evolutionary wise. So option (c) is incorrect.

Option (d) causes changes in allele frequencies. Genetic information gets altered or rearranged in microevolution, not macroevolution. Alteration of genetic information leads to changes in allele frequencies. The microevolution occurs over a short time scale. The changes occur in genetic level causes the phenotypic changes which are naturally selected overtime. So, microevolution often lead to macroevolution. Option (d) is incorrect.

Option (e) occurs in large mammals. This option is incorrect as macroevolution can be taken place in almost every kind of population. Birds, fish, reptiles, bacteria etc.

Conclusion

Macroevolution refers to evolutionary changes that produce new species and group of species. So, option (b) is correct.

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Answer 4

Textbook Question

Chapter 20, Problem 1TY

Macroevolution refers to evolutionary changes that

occur in multicellular organisms.
produce new species and groups of species.
occur over long periods of time.
cause changes in allele frequencies.
occur in large mammals.

Expert Solution & Answer

Summary Introduction

Introduction:

Microevolution is the change in allele frequencies within a population over time. Microevolution is a result of mutations, natural selection, gene flow and genetic drift. In microevolution small differences in population occur compared to macroevolution. Microevolution over long period of time leads to speciation which is described under macroevolution.

Answer to Problem 1TY

The correct answersisoption (b) produce new species and groups of species and option

Explanation of Solution

Explanation/justification for the correct answer:

Option (b) − Macroevolution is the large-scale evolution which occurs at the level of species and above. It describes the differences between two closely related species; for instance, western meadowlark and eastern meadowlark birds. They are two different species even though the morphological characteristics are similar. They cannot mate due to reproductive isolation. Microevolution also describes that the all life forms are from a single origin. So, option (b) is the correct answer.

Explanation for incorrect answer:

Option (a) − Macroevolution is usually defined as the innovation of morphological innovations in multicellular organisms. But there are some microbial experimental evidences of macroevolution in unicellular level.

Option (c) − the changes observed in macroevolution occurs over long time period. The changes happen in microevolution occurs over a short period of time relatively to the changes occur in macroevolution in evolutionary wise. So option (c) is incorrect.

Option (d) causes changes in allele frequencies. Genetic information gets altered or rearranged in microevolution, not macroevolution. Alteration of genetic information leads to changes in allele frequencies. The microevolution occurs over a short time scale. The changes occur in genetic level causes the phenotypic changes which are naturally selected overtime. So, microevolution often lead to macroevolution. Option (d) is incorrect.

Option (e) occurs in large mammals. This option is incorrect as macroevolution can be taken place in almost every kind of population. Birds, fish, reptiles, bacteria etc.

Conclusion

Macroevolution refers to evolutionary changes that produce new species and group of species. So, option (b) is correct.

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Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

Summary Introduction

Introduction:

Microevolution is the change in allele frequencies within a population over time. Microevolution is a result of mutations, natural selection, gene flow and genetic drift. In microevolution small differences in population occur compared to macroevolution. Microevolution over long period of time leads to speciation which is described under macroevolution.

Answer to Problem 1TY

The correct answersisoption (b) produce new species and groups of species and option

Explanation of Solution

Explanation/justification for the correct answer:

Option (b) − Macroevolution is the large-scale evolution which occurs at the level of species and above. It describes the differences between two closely related species; for instance, western meadowlark and eastern meadowlark birds. They are two different species even though the morphological characteristics are similar. They cannot mate due to reproductive isolation. Microevolution also describes that the all life forms are from a single origin. So, option (b) is the correct answer.

Explanation for incorrect answer:

Option (a) − Macroevolution is usually defined as the innovation of morphological innovations in multicellular organisms. But there are some microbial experimental evidences of macroevolution in unicellular level.

Option (c) − the changes observed in macroevolution occurs over long time period. The changes happen in microevolution occurs over a short period of time relatively to the changes occur in macroevolution in evolutionary wise. So option (c) is incorrect.

Option (d) causes changes in allele frequencies. Genetic information gets altered or rearranged in microevolution, not macroevolution. Alteration of genetic information leads to changes in allele frequencies. The microevolution occurs over a short time scale. The changes occur in genetic level causes the phenotypic changes which are naturally selected overtime. So, microevolution often lead to macroevolution. Option (d) is incorrect.

Option (e) occurs in large mammals. This option is incorrect as macroevolution can be taken place in almost every kind of population. Birds, fish, reptiles, bacteria etc.

Conclusion

Macroevolution refers to evolutionary changes that produce new species and group of species. So, option (b) is correct.

Answer 8

Expert Solution & Answer

Summary Introduction

Introduction:

Microevolution is the change in allele frequencies within a population over time. Microevolution is a result of mutations, natural selection, gene flow and genetic drift. In microevolution small differences in population occur compared to macroevolution. Microevolution over long period of time leads to speciation which is described under macroevolution.

Answer to Problem 1TY

The correct answersisoption (b) produce new species and groups of species and option

Explanation of Solution

Explanation/justification for the correct answer:

Option (b) − Macroevolution is the large-scale evolution which occurs at the level of species and above. It describes the differences between two closely related species; for instance, western meadowlark and eastern meadowlark birds. They are two different species even though the morphological characteristics are similar. They cannot mate due to reproductive isolation. Microevolution also describes that the all life forms are from a single origin. So, option (b) is the correct answer.

Explanation for incorrect answer:

Option (a) − Macroevolution is usually defined as the innovation of morphological innovations in multicellular organisms. But there are some microbial experimental evidences of macroevolution in unicellular level.

Option (c) − the changes observed in macroevolution occurs over long time period. The changes happen in microevolution occurs over a short period of time relatively to the changes occur in macroevolution in evolutionary wise. So option (c) is incorrect.

Option (d) causes changes in allele frequencies. Genetic information gets altered or rearranged in microevolution, not macroevolution. Alteration of genetic information leads to changes in allele frequencies. The microevolution occurs over a short time scale. The changes occur in genetic level causes the phenotypic changes which are naturally selected overtime. So, microevolution often lead to macroevolution. Option (d) is incorrect.

Option (e) occurs in large mammals. This option is incorrect as macroevolution can be taken place in almost every kind of population. Birds, fish, reptiles, bacteria etc.

Conclusion

Macroevolution refers to evolutionary changes that produce new species and group of species. So, option (b) is correct.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

Introduction:

Microevolution is the change in allele frequencies within a population over time. Microevolution is a result of mutations, natural selection, gene flow and genetic drift. In microevolution small differences in population occur compared to macroevolution. Microevolution over long period of time leads to speciation which is described under macroevolution.

Answer 12

Answer to Problem 1TY

The correct answersisoption (b) produce new species and groups of species and option

Answer 13

Explanation of Solution

Explanation/justification for the correct answer:

Option (b) − Macroevolution is the large-scale evolution which occurs at the level of species and above. It describes the differences between two closely related species; for instance, western meadowlark and eastern meadowlark birds. They are two different species even though the morphological characteristics are similar. They cannot mate due to reproductive isolation. Microevolution also describes that the all life forms are from a single origin. So, option (b) is the correct answer.

Explanation for incorrect answer:

Option (a) − Macroevolution is usually defined as the innovation of morphological innovations in multicellular organisms. But there are some microbial experimental evidences of macroevolution in unicellular level.

Option (c) − the changes observed in macroevolution occurs over long time period. The changes happen in microevolution occurs over a short period of time relatively to the changes occur in macroevolution in evolutionary wise. So option (c) is incorrect.

Option (d) causes changes in allele frequencies. Genetic information gets altered or rearranged in microevolution, not macroevolution. Alteration of genetic information leads to changes in allele frequencies. The microevolution occurs over a short time scale. The changes occur in genetic level causes the phenotypic changes which are naturally selected overtime. So, microevolution often lead to macroevolution. Option (d) is incorrect.

Option (e) occurs in large mammals. This option is incorrect as macroevolution can be taken place in almost every kind of population. Birds, fish, reptiles, bacteria etc.