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.

Question

Want to see more full solutions like this?

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.

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!

Students have asked these similar questions

19. On the diagram below a. Label the three pictures as: DNA; polypeptide; or RNA. b. Label the arrows as: translation or transcription/RNA processing. c. Add the following details to the diagram. Promoter region TATA box Transcription start site Transcription terminator Intron (A,B,C,D) Exons (1,2,3,4,5) Splice sites 5' cap 5' UTR (untranslated region) 3' poly A tail 3' UTR (untranslated region) Translational start (AUG) Translational stop (UGA, UAG, or UAA) N and C ends of polypeptide 0000

Match the letter labels in the figure below to the terms. Some letter labels are not used. MNNNNNNIN M C B A M D F E H K G 8

The diagram below illustrates a quorum sensing pathway from Staphylococcus aureus. Please answer the following questions. 1. Autoinduction is part of the quorum sensing system. Which promoter (P2 or P3) is critical for autoinduction? 2)This staphylococcus aureus grows on human wounds, causing severe infections. You would like to start a clinical trial to treat these wound infections. Please describe: a) What molecule do you recommend for the trial. Why? b) Your trial requires that Staphylococcus aureus be isolated from the wound and submitted to genome sequencing before admittance. Why? What are you testing for? 3) If a mutation arises where the Promoter P3 is constitutively active, how would that influence sensitivity to AIP? Please explain your rationale. 4) This pathway is sensitive to bacterial cell density. Describe two separate mutation that would render the pathway active independent of cell density. Briefly explain your rationale. Mutation 1 Mutation 2

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.

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 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.

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 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.

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 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.