Describe likely features of the common ancestor of chordates, and explain your reasoning.

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Answer 1

Textbook Question

Chapter 34, Problem 34.1CR

Describe likely features of the common ancestor of chordates, and explain your reasoning.

Expert Solution & Answer

Summary Introduction

To explain: Likely features of common ancestor of chordates.

Concept introduction:

Deuterostomes are the likely ancestors of the Chordates. Deuterostomes consists of Echinoderms, Cephalochordates, Urochordates and many more phylums. They do not look physiologically like chordates but are genetically very similar.

Explanation of Solution

The features of the common ancestors of chordates are the presence of dorsal nerve cord and notochord. They possess pharyngeal slits that function as gills of fish. They also possess a muscular tail that surpasses the anus. The symmetry is bilateral as the cord passes through the center.

Conclusion

The modern-day chordate possess various features same as their ancestors. Presence of the nerve cord and muscular layering over it are seen in the ancestors, the features that are now fully developed in phylum Chordata.

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Answer 2

Textbook Question

Chapter 34, Problem 34.1CR

Describe likely features of the common ancestor of chordates, and explain your reasoning.

Expert Solution & Answer

Summary Introduction

To explain: Likely features of common ancestor of chordates.

Concept introduction:

Deuterostomes are the likely ancestors of the Chordates. Deuterostomes consists of Echinoderms, Cephalochordates, Urochordates and many more phylums. They do not look physiologically like chordates but are genetically very similar.

Explanation of Solution

The features of the common ancestors of chordates are the presence of dorsal nerve cord and notochord. They possess pharyngeal slits that function as gills of fish. They also possess a muscular tail that surpasses the anus. The symmetry is bilateral as the cord passes through the center.

Conclusion

The modern-day chordate possess various features same as their ancestors. Presence of the nerve cord and muscular layering over it are seen in the ancestors, the features that are now fully developed in phylum Chordata.

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Answer 3

Textbook Question

Chapter 34, Problem 34.1CR

Describe likely features of the common ancestor of chordates, and explain your reasoning.

Expert Solution & Answer

Summary Introduction

To explain: Likely features of common ancestor of chordates.

Concept introduction:

Deuterostomes are the likely ancestors of the Chordates. Deuterostomes consists of Echinoderms, Cephalochordates, Urochordates and many more phylums. They do not look physiologically like chordates but are genetically very similar.

Explanation of Solution

The features of the common ancestors of chordates are the presence of dorsal nerve cord and notochord. They possess pharyngeal slits that function as gills of fish. They also possess a muscular tail that surpasses the anus. The symmetry is bilateral as the cord passes through the center.

Conclusion

The modern-day chordate possess various features same as their ancestors. Presence of the nerve cord and muscular layering over it are seen in the ancestors, the features that are now fully developed in phylum Chordata.

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Answer 4

Textbook Question

Chapter 34, Problem 34.1CR

Describe likely features of the common ancestor of chordates, and explain your reasoning.

Expert Solution & Answer

Summary Introduction

To explain: Likely features of common ancestor of chordates.

Concept introduction:

Deuterostomes are the likely ancestors of the Chordates. Deuterostomes consists of Echinoderms, Cephalochordates, Urochordates and many more phylums. They do not look physiologically like chordates but are genetically very similar.

Explanation of Solution

The features of the common ancestors of chordates are the presence of dorsal nerve cord and notochord. They possess pharyngeal slits that function as gills of fish. They also possess a muscular tail that surpasses the anus. The symmetry is bilateral as the cord passes through the center.

Conclusion

The modern-day chordate possess various features same as their ancestors. Presence of the nerve cord and muscular layering over it are seen in the ancestors, the features that are now fully developed in phylum Chordata.

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Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

Summary Introduction

To explain: Likely features of common ancestor of chordates.

Concept introduction:

Deuterostomes are the likely ancestors of the Chordates. Deuterostomes consists of Echinoderms, Cephalochordates, Urochordates and many more phylums. They do not look physiologically like chordates but are genetically very similar.

Explanation of Solution

The features of the common ancestors of chordates are the presence of dorsal nerve cord and notochord. They possess pharyngeal slits that function as gills of fish. They also possess a muscular tail that surpasses the anus. The symmetry is bilateral as the cord passes through the center.

Conclusion

The modern-day chordate possess various features same as their ancestors. Presence of the nerve cord and muscular layering over it are seen in the ancestors, the features that are now fully developed in phylum Chordata.

Answer 8

Expert Solution & Answer

Summary Introduction

To explain: Likely features of common ancestor of chordates.

Concept introduction:

Deuterostomes are the likely ancestors of the Chordates. Deuterostomes consists of Echinoderms, Cephalochordates, Urochordates and many more phylums. They do not look physiologically like chordates but are genetically very similar.

Explanation of Solution

The features of the common ancestors of chordates are the presence of dorsal nerve cord and notochord. They possess pharyngeal slits that function as gills of fish. They also possess a muscular tail that surpasses the anus. The symmetry is bilateral as the cord passes through the center.

Conclusion

The modern-day chordate possess various features same as their ancestors. Presence of the nerve cord and muscular layering over it are seen in the ancestors, the features that are now fully developed in phylum Chordata.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

To explain: Likely features of common ancestor of chordates.

Concept introduction:

Deuterostomes are the likely ancestors of the Chordates. Deuterostomes consists of Echinoderms, Cephalochordates, Urochordates and many more phylums. They do not look physiologically like chordates but are genetically very similar.

Answer 12

Explanation of Solution

The features of the common ancestors of chordates are the presence of dorsal nerve cord and notochord. They possess pharyngeal slits that function as gills of fish. They also possess a muscular tail that surpasses the anus. The symmetry is bilateral as the cord passes through the center.

Answer 13

Conclusion

The modern-day chordate possess various features same as their ancestors. Presence of the nerve cord and muscular layering over it are seen in the ancestors, the features that are now fully developed in phylum Chordata.

Answer 14

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Describe likely features of the common ancestor of chordates, and explain your reasoning.

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