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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After you feel comfortable with your counting method and identifying cells in the various stages of mitosis, use the four images below of whitefish blastula to count the cells in each stage until you reach 100 total cells, recording your data below in Data Table 1. (You may not need to use all four images. Stop counting when you reach 100 total cells.) After totaling the cells in each stage, calculate the percent of cells in each stage. (Divide total of stage by overall total of 100 and then multiply by 100 to obtain percentage.) Data Table 1Stage Totals PercentInterphase Mitosis: Prophase Metaphase Anaphase Telophase Cytokinesis Totals 100 100% To find the length of time whitefish blastula cells spend in each stage, multiply the percent (recorded as a decimal, in other words take the percent number and divide by 100) by 24 hours. (Example: If percent is 20%, then Time in Hours = .2 * 24 = 4.8) Record your data in Data…

What are Clathrin coated vesicles and what is their function?

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.