To enlist: The evidence that are used by the biologist to classify earthworms, caecilians and snakes in different clades regardless of the superficial similarities among these animals. Concept Introduction: Earthworm, caecilians and snakes are all included in group eumetazoans characterized by bilateral symmetry and three germ layers. Earthworm belongs to the group annelids. Snakes and caecilians are vertebrate chordates. Earthworm comes under the clade protostomes whereas snake and caecilians are included under deuterostomes. Snakes are classified into class reptilia and caecilians are classified into class amphibia.

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Answer 1

Question

Chapter 21, Problem 15WIO

Summary Introduction

To enlist:

The evidence that are used by the biologist to classify earthworms, caecilians and snakes in different clades regardless of the superficial similarities among these animals.

Concept Introduction:

Earthworm, caecilians and snakes are all included in group eumetazoans characterized by bilateral symmetry and three germ layers. Earthworm belongs to the group annelids. Snakes and caecilians are vertebrate chordates. Earthworm comes under the clade protostomes whereas snake and caecilians are included under deuterostomes. Snakes are classified into class reptilia and caecilians are classified into class amphibia.

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Answer 2

Question

Chapter 21, Problem 15WIO

Summary Introduction

To enlist:

The evidence that are used by the biologist to classify earthworms, caecilians and snakes in different clades regardless of the superficial similarities among these animals.

Concept Introduction:

Earthworm, caecilians and snakes are all included in group eumetazoans characterized by bilateral symmetry and three germ layers. Earthworm belongs to the group annelids. Snakes and caecilians are vertebrate chordates. Earthworm comes under the clade protostomes whereas snake and caecilians are included under deuterostomes. Snakes are classified into class reptilia and caecilians are classified into class amphibia.

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Answer 3

Question

Chapter 21, Problem 15WIO

Summary Introduction

To enlist:

The evidence that are used by the biologist to classify earthworms, caecilians and snakes in different clades regardless of the superficial similarities among these animals.

Concept Introduction:

Earthworm, caecilians and snakes are all included in group eumetazoans characterized by bilateral symmetry and three germ layers. Earthworm belongs to the group annelids. Snakes and caecilians are vertebrate chordates. Earthworm comes under the clade protostomes whereas snake and caecilians are included under deuterostomes. Snakes are classified into class reptilia and caecilians are classified into class amphibia.

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Answer 4

Question

Chapter 21, Problem 15WIO

Summary Introduction

To enlist:

The evidence that are used by the biologist to classify earthworms, caecilians and snakes in different clades regardless of the superficial similarities among these animals.

Concept Introduction:

Earthworm, caecilians and snakes are all included in group eumetazoans characterized by bilateral symmetry and three germ layers. Earthworm belongs to the group annelids. Snakes and caecilians are vertebrate chordates. Earthworm comes under the clade protostomes whereas snake and caecilians are included under deuterostomes. Snakes are classified into class reptilia and caecilians are classified into class amphibia.

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Answer 5

Chapter 21, Problem 15WIO

Summary Introduction

To enlist:

The evidence that are used by the biologist to classify earthworms, caecilians and snakes in different clades regardless of the superficial similarities among these animals.

Concept Introduction:

Earthworm, caecilians and snakes are all included in group eumetazoans characterized by bilateral symmetry and three germ layers. Earthworm belongs to the group annelids. Snakes and caecilians are vertebrate chordates. Earthworm comes under the clade protostomes whereas snake and caecilians are included under deuterostomes. Snakes are classified into class reptilia and caecilians are classified into class amphibia.

Answer 6

Chapter 21, Problem 15WIO

Summary Introduction

To enlist:

The evidence that are used by the biologist to classify earthworms, caecilians and snakes in different clades regardless of the superficial similarities among these animals.

Concept Introduction:

Earthworm, caecilians and snakes are all included in group eumetazoans characterized by bilateral symmetry and three germ layers. Earthworm belongs to the group annelids. Snakes and caecilians are vertebrate chordates. Earthworm comes under the clade protostomes whereas snake and caecilians are included under deuterostomes. Snakes are classified into class reptilia and caecilians are classified into class amphibia.

Answer 7

Chapter 21, Problem 15WIO

Summary Introduction

To enlist:

The evidence that are used by the biologist to classify earthworms, caecilians and snakes in different clades regardless of the superficial similarities among these animals.

Concept Introduction:

Earthworm, caecilians and snakes are all included in group eumetazoans characterized by bilateral symmetry and three germ layers. Earthworm belongs to the group annelids. Snakes and caecilians are vertebrate chordates. Earthworm comes under the clade protostomes whereas snake and caecilians are included under deuterostomes. Snakes are classified into class reptilia and caecilians are classified into class amphibia.

Answer 8

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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

Solution Summary: The author explains that earthworms, caecilians, and snakes are classified into different clades based on their characteristic features.

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