Birds and crocodiles are included under the phylum Chordata. Birds belong to the class Aves and crocodile belong from the class Reptilia. Birds provide an evolutionary relationship with Reptiles. Birds have the characteristic feature of having scales, egg laying properties and four chambered hearts, which shows the ancestral relationship of birds with reptiles.

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Chapter 21, Problem 14MCQ

Summary Introduction

Introduction:

Birds and crocodiles are included under the phylum Chordata. Birds belong to the class Aves and crocodile belong from the class Reptilia. Birds provide an evolutionary relationship with Reptiles. Birds have the characteristic feature of having scales, egg laying properties and four chambered hearts, which shows the ancestral relationship of birds with reptiles.

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Answer 2

Question

Chapter 21, Problem 14MCQ

Summary Introduction

Introduction:

Birds and crocodiles are included under the phylum Chordata. Birds belong to the class Aves and crocodile belong from the class Reptilia. Birds provide an evolutionary relationship with Reptiles. Birds have the characteristic feature of having scales, egg laying properties and four chambered hearts, which shows the ancestral relationship of birds with reptiles.

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Answer 3

Question

Chapter 21, Problem 14MCQ

Summary Introduction

Introduction:

Birds and crocodiles are included under the phylum Chordata. Birds belong to the class Aves and crocodile belong from the class Reptilia. Birds provide an evolutionary relationship with Reptiles. Birds have the characteristic feature of having scales, egg laying properties and four chambered hearts, which shows the ancestral relationship of birds with reptiles.

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Answer 4

Question

Chapter 21, Problem 14MCQ

Summary Introduction

Introduction:

Birds and crocodiles are included under the phylum Chordata. Birds belong to the class Aves and crocodile belong from the class Reptilia. Birds provide an evolutionary relationship with Reptiles. Birds have the characteristic feature of having scales, egg laying properties and four chambered hearts, which shows the ancestral relationship of birds with reptiles.

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Answer 5

Chapter 21, Problem 14MCQ

Summary Introduction

Introduction:

Birds and crocodiles are included under the phylum Chordata. Birds belong to the class Aves and crocodile belong from the class Reptilia. Birds provide an evolutionary relationship with Reptiles. Birds have the characteristic feature of having scales, egg laying properties and four chambered hearts, which shows the ancestral relationship of birds with reptiles.

Answer 6

Chapter 21, Problem 14MCQ

Summary Introduction

Introduction:

Birds and crocodiles are included under the phylum Chordata. Birds belong to the class Aves and crocodile belong from the class Reptilia. Birds provide an evolutionary relationship with Reptiles. Birds have the characteristic feature of having scales, egg laying properties and four chambered hearts, which shows the ancestral relationship of birds with reptiles.

Answer 7

Chapter 21, Problem 14MCQ

Summary Introduction

Introduction:

Birds and crocodiles are included under the phylum Chordata. Birds belong to the class Aves and crocodile belong from the class Reptilia. Birds provide an evolutionary relationship with Reptiles. Birds have the characteristic feature of having scales, egg laying properties and four chambered hearts, which shows the ancestral relationship of birds with reptiles.

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 birds and crocodiles share keratinous scale, egg laying, and four chambered hearts, which shows the ancestral relationship of birds with reptiles.

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