Connecting phrases which separate arthropods and roundworms from annelids, mollusks, and flatworms . Concept introduction: Arthropods, roundworms, annelids, mollusks, and flatworms all are included under the sub kingdom eumetazoa characterized by bilateral symmetry and three germ layers. All these animals come under the clade protostome which means that the mouth develops from the first opening in the embryo.

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Answer 1

Question

Chapter 21, Problem 2PIT

Summary Introduction

To write:

Connecting phrases which separate arthropods and roundworms from annelids, mollusks, and flatworms.

Concept introduction:

Arthropods, roundworms, annelids, mollusks, and flatworms all are included under the sub kingdom eumetazoa characterized by bilateral symmetry and three germ layers. All these animals come under the clade protostome which means that the mouth develops from the first opening in the embryo.

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Answer 2

Question

Chapter 21, Problem 2PIT

Summary Introduction

To write:

Connecting phrases which separate arthropods and roundworms from annelids, mollusks, and flatworms.

Concept introduction:

Arthropods, roundworms, annelids, mollusks, and flatworms all are included under the sub kingdom eumetazoa characterized by bilateral symmetry and three germ layers. All these animals come under the clade protostome which means that the mouth develops from the first opening in the embryo.

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Answer 3

Question

Chapter 21, Problem 2PIT

Summary Introduction

To write:

Connecting phrases which separate arthropods and roundworms from annelids, mollusks, and flatworms.

Concept introduction:

Arthropods, roundworms, annelids, mollusks, and flatworms all are included under the sub kingdom eumetazoa characterized by bilateral symmetry and three germ layers. All these animals come under the clade protostome which means that the mouth develops from the first opening in the embryo.

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Answer 4

Question

Chapter 21, Problem 2PIT

Summary Introduction

To write:

Connecting phrases which separate arthropods and roundworms from annelids, mollusks, and flatworms.

Concept introduction:

Arthropods, roundworms, annelids, mollusks, and flatworms all are included under the sub kingdom eumetazoa characterized by bilateral symmetry and three germ layers. All these animals come under the clade protostome which means that the mouth develops from the first opening in the embryo.

Expert Solution & Answer

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Answer 5

Chapter 21, Problem 2PIT

Summary Introduction

To write:

Connecting phrases which separate arthropods and roundworms from annelids, mollusks, and flatworms.

Concept introduction:

Arthropods, roundworms, annelids, mollusks, and flatworms all are included under the sub kingdom eumetazoa characterized by bilateral symmetry and three germ layers. All these animals come under the clade protostome which means that the mouth develops from the first opening in the embryo.

Answer 6

Chapter 21, Problem 2PIT

Summary Introduction

To write:

Connecting phrases which separate arthropods and roundworms from annelids, mollusks, and flatworms.

Concept introduction:

Arthropods, roundworms, annelids, mollusks, and flatworms all are included under the sub kingdom eumetazoa characterized by bilateral symmetry and three germ layers. All these animals come under the clade protostome which means that the mouth develops from the first opening in the embryo.

Answer 7

Chapter 21, Problem 2PIT

Summary Introduction

To write:

Connecting phrases which separate arthropods and roundworms from annelids, mollusks, and flatworms.

Concept introduction:

Arthropods, roundworms, annelids, mollusks, and flatworms all are included under the sub kingdom eumetazoa characterized by bilateral symmetry and three germ layers. All these animals come under the clade protostome which means that the mouth develops from the first opening in the embryo.

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 - What advantages does segmentation confer?Ch. 21.1 - Prob. 7MC Ch. 21.2 - Prob. 1MC Ch. 21.2 - Prob. 2MC Ch. 21.2 - Prob. 3MC

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Chapter 21 Solutions