Whether the fossil is of a mammal or a reptile by contrasting their characteristic features. Concept Introduction: Mammals and reptiles both belong from the class chordates. The fossils of mammal and reptile are identified by bone shells, exoskeleton, stone imprints and DNA residue. A fossil represents the traces and remains of an animal or plants that have been preserved in rock for longer time. Mammals and reptiles have different body structure and arrangement of the bones and skeleton which helps in determining the fossils.

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Answer 1

Question

Chapter 21, Problem 20WIO

Summary Introduction

To determine:

Whether the fossil is of a mammal or a reptile by contrasting their characteristic features.

Concept Introduction:

Mammals and reptiles both belong from the class chordates. The fossils of mammal and reptile are identified by bone shells, exoskeleton, stone imprints and DNA residue. A fossil represents the traces and remains of an animal or plants that have been preserved in rock for longer time. Mammals and reptiles have different body structure and arrangement of the bones and skeleton which helps in determining the fossils.

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Answer 2

Question

Chapter 21, Problem 20WIO

Summary Introduction

To determine:

Whether the fossil is of a mammal or a reptile by contrasting their characteristic features.

Concept Introduction:

Mammals and reptiles both belong from the class chordates. The fossils of mammal and reptile are identified by bone shells, exoskeleton, stone imprints and DNA residue. A fossil represents the traces and remains of an animal or plants that have been preserved in rock for longer time. Mammals and reptiles have different body structure and arrangement of the bones and skeleton which helps in determining the fossils.

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Answer 3

Question

Chapter 21, Problem 20WIO

Summary Introduction

To determine:

Whether the fossil is of a mammal or a reptile by contrasting their characteristic features.

Concept Introduction:

Mammals and reptiles both belong from the class chordates. The fossils of mammal and reptile are identified by bone shells, exoskeleton, stone imprints and DNA residue. A fossil represents the traces and remains of an animal or plants that have been preserved in rock for longer time. Mammals and reptiles have different body structure and arrangement of the bones and skeleton which helps in determining the fossils.

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Answer 4

Question

Chapter 21, Problem 20WIO

Summary Introduction

To determine:

Whether the fossil is of a mammal or a reptile by contrasting their characteristic features.

Concept Introduction:

Mammals and reptiles both belong from the class chordates. The fossils of mammal and reptile are identified by bone shells, exoskeleton, stone imprints and DNA residue. A fossil represents the traces and remains of an animal or plants that have been preserved in rock for longer time. Mammals and reptiles have different body structure and arrangement of the bones and skeleton which helps in determining the fossils.

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Answer 5

Chapter 21, Problem 20WIO

Summary Introduction

To determine:

Whether the fossil is of a mammal or a reptile by contrasting their characteristic features.

Concept Introduction:

Mammals and reptiles both belong from the class chordates. The fossils of mammal and reptile are identified by bone shells, exoskeleton, stone imprints and DNA residue. A fossil represents the traces and remains of an animal or plants that have been preserved in rock for longer time. Mammals and reptiles have different body structure and arrangement of the bones and skeleton which helps in determining the fossils.

Answer 6

Chapter 21, Problem 20WIO

Summary Introduction

To determine:

Whether the fossil is of a mammal or a reptile by contrasting their characteristic features.

Concept Introduction:

Mammals and reptiles both belong from the class chordates. The fossils of mammal and reptile are identified by bone shells, exoskeleton, stone imprints and DNA residue. A fossil represents the traces and remains of an animal or plants that have been preserved in rock for longer time. Mammals and reptiles have different body structure and arrangement of the bones and skeleton which helps in determining the fossils.

Answer 7

Chapter 21, Problem 20WIO

Summary Introduction

To determine:

Whether the fossil is of a mammal or a reptile by contrasting their characteristic features.

Concept Introduction:

Mammals and reptiles both belong from the class chordates. The fossils of mammal and reptile are identified by bone shells, exoskeleton, stone imprints and DNA residue. A fossil represents the traces and remains of an animal or plants that have been preserved in rock for longer time. Mammals and reptiles have different body structure and arrangement of the bones and skeleton which helps in determining the fossils.

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

Solution Summary: The author explains that fossils of mammals and reptiles are differentiated by their anatomical features.

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Chapter 21 Solutions