The time and the geological period when the last common ancestor of the seed plants as well as ferns lived. Given: The fFigure 1 shows the geological timescale of the origin of various embryophytes (land plants) including ferns and seed plants. Figure 1: The geological timescale of the origin of various embryophytes. Introduction: Horsetails, ferns, and seed plants form a clade commonly referred as euphyllophytes. These are the true leaf plants. Another important characteristic feature of these plants is overtopping. It is a growth pattern, where one branch of the plant gets differentiated from the other and grows beyond that other branch. This feature gives an advantage to the plants in competition for light.

Question

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Answer 1

Question

Chapter 27, Problem 1Q

Summary Introduction

To review:

The time and the geological period when the last common ancestor of the seed plants as well as ferns lived.

Given:

The fFigure 1 shows the geological timescale of the origin of various embryophytes (land plants) including ferns and seed plants.

Figure 1: The geological timescale of the origin of various embryophytes.

Introduction:

Horsetails, ferns, and seed plants form a clade commonly referred as euphyllophytes. These are the true leaf plants. Another important characteristic feature of these plants is overtopping. It is a growth pattern, where one branch of the plant gets differentiated from the other and grows beyond that other branch. This feature gives an advantage to the plants in competition for light.

Expert Solution & Answer

Explanation of Solution

It can be clearly observed from Figure 1 that the common ancestor of ferns as well as the seed plants originated about 390 million years ago in the mid-Devonian period of the Paleozoic era. Today, the ferns comprise of more than 12,000 species whereas there are about 15 known species of horsetails. The species of horsetails lie in a single genus, Equisetum. It can be noticed that horsetail species are more closely linked to ferns as compared to the seed plants.

Conclusion

Therefore, it can be concluded that common ancestor of ferns and seed plants arose in mid-Devonian about 390 million years ago.

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Students have asked these similar questions

Compare and contrast bryophytes (e.g. mosses) and seedless vascular plants (e.g. ferns). What differences exist between these classifications of plants, and how have these differences become evolutionarily advantageous?

Ferns and their allies are both vascular plants which means they all contain the xylem & phloem for water and food transport. Discuss two significant developments/ features that evolved among the ferns that differentiate them from the lower vascular plants.

How might Bryophytes and Lycophytes (“true” mosses and spikemosses) have contributed to the evolution of flowering plants and other land plants?

Answer 2

Question

Chapter 27, Problem 1Q

Summary Introduction

To review:

The time and the geological period when the last common ancestor of the seed plants as well as ferns lived.

Given:

The fFigure 1 shows the geological timescale of the origin of various embryophytes (land plants) including ferns and seed plants.

Figure 1: The geological timescale of the origin of various embryophytes.

Introduction:

Horsetails, ferns, and seed plants form a clade commonly referred as euphyllophytes. These are the true leaf plants. Another important characteristic feature of these plants is overtopping. It is a growth pattern, where one branch of the plant gets differentiated from the other and grows beyond that other branch. This feature gives an advantage to the plants in competition for light.

Expert Solution & Answer

Explanation of Solution

It can be clearly observed from Figure 1 that the common ancestor of ferns as well as the seed plants originated about 390 million years ago in the mid-Devonian period of the Paleozoic era. Today, the ferns comprise of more than 12,000 species whereas there are about 15 known species of horsetails. The species of horsetails lie in a single genus, Equisetum. It can be noticed that horsetail species are more closely linked to ferns as compared to the seed plants.

Conclusion

Therefore, it can be concluded that common ancestor of ferns and seed plants arose in mid-Devonian about 390 million years ago.

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Answer 3

Question

Chapter 27, Problem 1Q

Summary Introduction

To review:

The time and the geological period when the last common ancestor of the seed plants as well as ferns lived.

Given:

The fFigure 1 shows the geological timescale of the origin of various embryophytes (land plants) including ferns and seed plants.

Figure 1: The geological timescale of the origin of various embryophytes.

Introduction:

Horsetails, ferns, and seed plants form a clade commonly referred as euphyllophytes. These are the true leaf plants. Another important characteristic feature of these plants is overtopping. It is a growth pattern, where one branch of the plant gets differentiated from the other and grows beyond that other branch. This feature gives an advantage to the plants in competition for light.

Expert Solution & Answer

Explanation of Solution

It can be clearly observed from Figure 1 that the common ancestor of ferns as well as the seed plants originated about 390 million years ago in the mid-Devonian period of the Paleozoic era. Today, the ferns comprise of more than 12,000 species whereas there are about 15 known species of horsetails. The species of horsetails lie in a single genus, Equisetum. It can be noticed that horsetail species are more closely linked to ferns as compared to the seed plants.

Conclusion

Therefore, it can be concluded that common ancestor of ferns and seed plants arose in mid-Devonian about 390 million years ago.

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

Answer 4

Question

Chapter 27, Problem 1Q

Summary Introduction

To review:

The time and the geological period when the last common ancestor of the seed plants as well as ferns lived.

Given:

The fFigure 1 shows the geological timescale of the origin of various embryophytes (land plants) including ferns and seed plants.

Figure 1: The geological timescale of the origin of various embryophytes.

Introduction:

Horsetails, ferns, and seed plants form a clade commonly referred as euphyllophytes. These are the true leaf plants. Another important characteristic feature of these plants is overtopping. It is a growth pattern, where one branch of the plant gets differentiated from the other and grows beyond that other branch. This feature gives an advantage to the plants in competition for light.

Expert Solution & Answer

Explanation of Solution

It can be clearly observed from Figure 1 that the common ancestor of ferns as well as the seed plants originated about 390 million years ago in the mid-Devonian period of the Paleozoic era. Today, the ferns comprise of more than 12,000 species whereas there are about 15 known species of horsetails. The species of horsetails lie in a single genus, Equisetum. It can be noticed that horsetail species are more closely linked to ferns as compared to the seed plants.

Conclusion

Therefore, it can be concluded that common ancestor of ferns and seed plants arose in mid-Devonian about 390 million years ago.

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 27, Problem 1Q

Summary Introduction

To review:

The time and the geological period when the last common ancestor of the seed plants as well as ferns lived.

Given:

The fFigure 1 shows the geological timescale of the origin of various embryophytes (land plants) including ferns and seed plants.

Figure 1: The geological timescale of the origin of various embryophytes.

Introduction:

Horsetails, ferns, and seed plants form a clade commonly referred as euphyllophytes. These are the true leaf plants. Another important characteristic feature of these plants is overtopping. It is a growth pattern, where one branch of the plant gets differentiated from the other and grows beyond that other branch. This feature gives an advantage to the plants in competition for light.

Expert Solution & Answer

Explanation of Solution

It can be clearly observed from Figure 1 that the common ancestor of ferns as well as the seed plants originated about 390 million years ago in the mid-Devonian period of the Paleozoic era. Today, the ferns comprise of more than 12,000 species whereas there are about 15 known species of horsetails. The species of horsetails lie in a single genus, Equisetum. It can be noticed that horsetail species are more closely linked to ferns as compared to the seed plants.

Conclusion

Therefore, it can be concluded that common ancestor of ferns and seed plants arose in mid-Devonian about 390 million years ago.

Answer 6

Chapter 27, Problem 1Q

Summary Introduction

To review:

The time and the geological period when the last common ancestor of the seed plants as well as ferns lived.

Given:

The fFigure 1 shows the geological timescale of the origin of various embryophytes (land plants) including ferns and seed plants.

Figure 1: The geological timescale of the origin of various embryophytes.

Introduction:

Horsetails, ferns, and seed plants form a clade commonly referred as euphyllophytes. These are the true leaf plants. Another important characteristic feature of these plants is overtopping. It is a growth pattern, where one branch of the plant gets differentiated from the other and grows beyond that other branch. This feature gives an advantage to the plants in competition for light.

Expert Solution & Answer

Explanation of Solution

It can be clearly observed from Figure 1 that the common ancestor of ferns as well as the seed plants originated about 390 million years ago in the mid-Devonian period of the Paleozoic era. Today, the ferns comprise of more than 12,000 species whereas there are about 15 known species of horsetails. The species of horsetails lie in a single genus, Equisetum. It can be noticed that horsetail species are more closely linked to ferns as compared to the seed plants.

Conclusion

Therefore, it can be concluded that common ancestor of ferns and seed plants arose in mid-Devonian about 390 million years ago.

Answer 7

Chapter 27, Problem 1Q

Summary Introduction

To review:

The time and the geological period when the last common ancestor of the seed plants as well as ferns lived.

Given:

The fFigure 1 shows the geological timescale of the origin of various embryophytes (land plants) including ferns and seed plants.

Figure 1: The geological timescale of the origin of various embryophytes.

Introduction:

Horsetails, ferns, and seed plants form a clade commonly referred as euphyllophytes. These are the true leaf plants. Another important characteristic feature of these plants is overtopping. It is a growth pattern, where one branch of the plant gets differentiated from the other and grows beyond that other branch. This feature gives an advantage to the plants in competition for light.

Answer 8

Expert Solution & Answer

Explanation of Solution

It can be clearly observed from Figure 1 that the common ancestor of ferns as well as the seed plants originated about 390 million years ago in the mid-Devonian period of the Paleozoic era. Today, the ferns comprise of more than 12,000 species whereas there are about 15 known species of horsetails. The species of horsetails lie in a single genus, Equisetum. It can be noticed that horsetail species are more closely linked to ferns as compared to the seed plants.