The reliable indicator of phylogenetic relationships among acoelomate, pseudocoelomates, and coelomates. Introduction: Phylogenetic relationships refer to the evolutionary relationships which exist among different organisms. It specifies a time at which two different groups of organisms shared a common ancestor.

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Answer 1

Question

Chapter 32, Problem 1IQ

Summary Introduction

To determine: The reliable indicator of phylogenetic relationships among acoelomate, pseudocoelomates, and coelomates.

Introduction: Phylogenetic relationships refer to the evolutionary relationships which exist among different organisms. It specifies a time at which two different groups of organisms shared a common ancestor.

Expert Solution & Answer

Explanation of Solution

Acoelomate, pseudocoelomate, and coelomate do not serve as reliable indicators of phylogenetic relationships even though these characters are ancestral because these characters re-evolved and appeared later again. Coelom evolved only one and is a common character in both protostomes and deuterostomes. However, certain protostomes and deuterostomes have evolved to form pseudocoelomic and acoelomic conditions. Further, the pseudocoelomic condition has exhibited convergent evolution in several animal clades and acoelomic condition re-evolved and appeared in Bilataria.

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Answer 2

Question

Chapter 32, Problem 1IQ

Summary Introduction

To determine: The reliable indicator of phylogenetic relationships among acoelomate, pseudocoelomates, and coelomates.

Introduction: Phylogenetic relationships refer to the evolutionary relationships which exist among different organisms. It specifies a time at which two different groups of organisms shared a common ancestor.

Expert Solution & Answer

Explanation of Solution

Acoelomate, pseudocoelomate, and coelomate do not serve as reliable indicators of phylogenetic relationships even though these characters are ancestral because these characters re-evolved and appeared later again. Coelom evolved only one and is a common character in both protostomes and deuterostomes. However, certain protostomes and deuterostomes have evolved to form pseudocoelomic and acoelomic conditions. Further, the pseudocoelomic condition has exhibited convergent evolution in several animal clades and acoelomic condition re-evolved and appeared in Bilataria.

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Answer 3

Question

Chapter 32, Problem 1IQ

Summary Introduction

To determine: The reliable indicator of phylogenetic relationships among acoelomate, pseudocoelomates, and coelomates.

Introduction: Phylogenetic relationships refer to the evolutionary relationships which exist among different organisms. It specifies a time at which two different groups of organisms shared a common ancestor.

Expert Solution & Answer

Explanation of Solution

Acoelomate, pseudocoelomate, and coelomate do not serve as reliable indicators of phylogenetic relationships even though these characters are ancestral because these characters re-evolved and appeared later again. Coelom evolved only one and is a common character in both protostomes and deuterostomes. However, certain protostomes and deuterostomes have evolved to form pseudocoelomic and acoelomic conditions. Further, the pseudocoelomic condition has exhibited convergent evolution in several animal clades and acoelomic condition re-evolved and appeared in Bilataria.

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Answer 4

Question

Chapter 32, Problem 1IQ

Summary Introduction

To determine: The reliable indicator of phylogenetic relationships among acoelomate, pseudocoelomates, and coelomates.

Introduction: Phylogenetic relationships refer to the evolutionary relationships which exist among different organisms. It specifies a time at which two different groups of organisms shared a common ancestor.

Expert Solution & Answer

Explanation of Solution

Acoelomate, pseudocoelomate, and coelomate do not serve as reliable indicators of phylogenetic relationships even though these characters are ancestral because these characters re-evolved and appeared later again. Coelom evolved only one and is a common character in both protostomes and deuterostomes. However, certain protostomes and deuterostomes have evolved to form pseudocoelomic and acoelomic conditions. Further, the pseudocoelomic condition has exhibited convergent evolution in several animal clades and acoelomic condition re-evolved and appeared in Bilataria.

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Answer 5

Chapter 32, Problem 1IQ

Summary Introduction

To determine: The reliable indicator of phylogenetic relationships among acoelomate, pseudocoelomates, and coelomates.

Introduction: Phylogenetic relationships refer to the evolutionary relationships which exist among different organisms. It specifies a time at which two different groups of organisms shared a common ancestor.

Expert Solution & Answer

Explanation of Solution

Acoelomate, pseudocoelomate, and coelomate do not serve as reliable indicators of phylogenetic relationships even though these characters are ancestral because these characters re-evolved and appeared later again. Coelom evolved only one and is a common character in both protostomes and deuterostomes. However, certain protostomes and deuterostomes have evolved to form pseudocoelomic and acoelomic conditions. Further, the pseudocoelomic condition has exhibited convergent evolution in several animal clades and acoelomic condition re-evolved and appeared in Bilataria.

Answer 6

Chapter 32, Problem 1IQ

Summary Introduction

To determine: The reliable indicator of phylogenetic relationships among acoelomate, pseudocoelomates, and coelomates.

Introduction: Phylogenetic relationships refer to the evolutionary relationships which exist among different organisms. It specifies a time at which two different groups of organisms shared a common ancestor.

Expert Solution & Answer

Explanation of Solution

Acoelomate, pseudocoelomate, and coelomate do not serve as reliable indicators of phylogenetic relationships even though these characters are ancestral because these characters re-evolved and appeared later again. Coelom evolved only one and is a common character in both protostomes and deuterostomes. However, certain protostomes and deuterostomes have evolved to form pseudocoelomic and acoelomic conditions. Further, the pseudocoelomic condition has exhibited convergent evolution in several animal clades and acoelomic condition re-evolved and appeared in Bilataria.

Answer 7

Chapter 32, Problem 1IQ

Summary Introduction

To determine: The reliable indicator of phylogenetic relationships among acoelomate, pseudocoelomates, and coelomates.

Introduction: Phylogenetic relationships refer to the evolutionary relationships which exist among different organisms. It specifies a time at which two different groups of organisms shared a common ancestor.

Answer 8

Expert Solution & Answer

Explanation of Solution

Acoelomate, pseudocoelomate, and coelomate do not serve as reliable indicators of phylogenetic relationships even though these characters are ancestral because these characters re-evolved and appeared later again. Coelom evolved only one and is a common character in both protostomes and deuterostomes. However, certain protostomes and deuterostomes have evolved to form pseudocoelomic and acoelomic conditions. Further, the pseudocoelomic condition has exhibited convergent evolution in several animal clades and acoelomic condition re-evolved and appeared in Bilataria.