The arguments that support or refute the statement “Annelids are more closely related to flatworms than to roundworms”. Concept Introduction: Flatworms, annelids and roundworms all are included under the group eumetazoans characterized by bilateral symmetry and three germ layers. Flatworms and annelids are included under the class lophotrochozoa while roundworm comes under the class ecdysozoa. All the three group of animals have same characteristics feature which shows close relationship between them.

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Answer 1

Question

Chapter 21, Problem 5WIO

Summary Introduction

To discuss:

The arguments that support or refute the statement “Annelids are more closely related to flatworms than to roundworms”.

Concept Introduction:

Flatworms, annelids and roundworms all are included under the group eumetazoans characterized by bilateral symmetry and three germ layers. Flatworms and annelids are included under the class lophotrochozoa while roundworm comes under the class ecdysozoa. All the three group of animals have same characteristics feature which shows close relationship between them.

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Answer 2

Question

Chapter 21, Problem 5WIO

Summary Introduction

To discuss:

The arguments that support or refute the statement “Annelids are more closely related to flatworms than to roundworms”.

Concept Introduction:

Flatworms, annelids and roundworms all are included under the group eumetazoans characterized by bilateral symmetry and three germ layers. Flatworms and annelids are included under the class lophotrochozoa while roundworm comes under the class ecdysozoa. All the three group of animals have same characteristics feature which shows close relationship between them.

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Answer 3

Question

Chapter 21, Problem 5WIO

Summary Introduction

To discuss:

The arguments that support or refute the statement “Annelids are more closely related to flatworms than to roundworms”.

Concept Introduction:

Flatworms, annelids and roundworms all are included under the group eumetazoans characterized by bilateral symmetry and three germ layers. Flatworms and annelids are included under the class lophotrochozoa while roundworm comes under the class ecdysozoa. All the three group of animals have same characteristics feature which shows close relationship between them.

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Answer 4

Question

Chapter 21, Problem 5WIO

Summary Introduction

To discuss:

The arguments that support or refute the statement “Annelids are more closely related to flatworms than to roundworms”.

Concept Introduction:

Flatworms, annelids and roundworms all are included under the group eumetazoans characterized by bilateral symmetry and three germ layers. Flatworms and annelids are included under the class lophotrochozoa while roundworm comes under the class ecdysozoa. All the three group of animals have same characteristics feature which shows close relationship between them.

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Answer 5

Chapter 21, Problem 5WIO

Summary Introduction

To discuss:

The arguments that support or refute the statement “Annelids are more closely related to flatworms than to roundworms”.

Concept Introduction:

Flatworms, annelids and roundworms all are included under the group eumetazoans characterized by bilateral symmetry and three germ layers. Flatworms and annelids are included under the class lophotrochozoa while roundworm comes under the class ecdysozoa. All the three group of animals have same characteristics feature which shows close relationship between them.

Answer 6

Chapter 21, Problem 5WIO

Summary Introduction

To discuss:

The arguments that support or refute the statement “Annelids are more closely related to flatworms than to roundworms”.

Concept Introduction:

Flatworms, annelids and roundworms all are included under the group eumetazoans characterized by bilateral symmetry and three germ layers. Flatworms and annelids are included under the class lophotrochozoa while roundworm comes under the class ecdysozoa. All the three group of animals have same characteristics feature which shows close relationship between them.

Answer 7

Chapter 21, Problem 5WIO

Summary Introduction

To discuss:

The arguments that support or refute the statement “Annelids are more closely related to flatworms than to roundworms”.

Concept Introduction:

Flatworms, annelids and roundworms all are included under the group eumetazoans characterized by bilateral symmetry and three germ layers. Flatworms and annelids are included under the class lophotrochozoa while roundworm comes under the class ecdysozoa. All the three group of animals have same characteristics feature which shows close relationship between them.

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 21.1 - Prob. 1MC Ch. 21.1 - Prob. 2MC Ch. 21.1 - Prob. 3MC Ch. 21.1 - Prob. 4MC Ch. 21.1 - Prob. 5MC Ch. 21.1 - Prob. 6MC Ch. 21.1 - Prob. 7MC Ch. 21.1 - Prob. 8MC Ch. 21.1 - What advantages does segmentation confer?Ch. 21.1 - Prob. 10MC

Solution Summary: The author explains that flatworms and annelids share the same clade lophotrochozoa along with mollusks, while roundworm comes under the ecdysozoan class.

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Chapter 21 Solutions