The given blank space in the statement, “Species designations may change when researchers ___. The biological species definition is difficult to apply to organisms that . An alternative species definition, known as the _, instead designates species on the basis of _____.” Introduction: The classification of species based on the hypothesis of evolutionary relationships shown by the three-domain system is revised when new data are available. Even the largest and oldest clade that also include the earliest branches of the tree also needs to be rearranged sometimes. These changes occur rarely at the top levels of classification, but among species designations, revision often occurs.

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Answer 1

Question

Chapter 18, Problem 5FTB

Summary Introduction

To review:

The given blank space in the statement, “Species designations may change when researchers ___. The biological species definition is difficult to apply to organisms that . An alternative species definition, known as the _, instead designates species on the basis of _____.”

Introduction:

The classification of species based on the hypothesis of evolutionary relationships shown by the three-domain system is revised when new data are available. Even the largest and oldest clade that also include the earliest branches of the tree also needs to be rearranged sometimes. These changes occur rarely at the top levels of classification, but among species designations, revision often occurs.

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Answer 2

Question

Chapter 18, Problem 5FTB

Summary Introduction

To review:

The given blank space in the statement, “Species designations may change when researchers ___. The biological species definition is difficult to apply to organisms that . An alternative species definition, known as the _, instead designates species on the basis of _____.”

Introduction:

The classification of species based on the hypothesis of evolutionary relationships shown by the three-domain system is revised when new data are available. Even the largest and oldest clade that also include the earliest branches of the tree also needs to be rearranged sometimes. These changes occur rarely at the top levels of classification, but among species designations, revision often occurs.

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Answer 3

Question

Chapter 18, Problem 5FTB

Summary Introduction

To review:

The given blank space in the statement, “Species designations may change when researchers ___. The biological species definition is difficult to apply to organisms that . An alternative species definition, known as the _, instead designates species on the basis of _____.”

Introduction:

The classification of species based on the hypothesis of evolutionary relationships shown by the three-domain system is revised when new data are available. Even the largest and oldest clade that also include the earliest branches of the tree also needs to be rearranged sometimes. These changes occur rarely at the top levels of classification, but among species designations, revision often occurs.

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Answer 4

Question

Chapter 18, Problem 5FTB

Summary Introduction

To review:

The given blank space in the statement, “Species designations may change when researchers ___. The biological species definition is difficult to apply to organisms that . An alternative species definition, known as the _, instead designates species on the basis of _____.”

Introduction:

The classification of species based on the hypothesis of evolutionary relationships shown by the three-domain system is revised when new data are available. Even the largest and oldest clade that also include the earliest branches of the tree also needs to be rearranged sometimes. These changes occur rarely at the top levels of classification, but among species designations, revision often occurs.

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Answer 5

Chapter 18, Problem 5FTB

Summary Introduction

To review:

The given blank space in the statement, “Species designations may change when researchers ___. The biological species definition is difficult to apply to organisms that . An alternative species definition, known as the _, instead designates species on the basis of _____.”

Introduction:

The classification of species based on the hypothesis of evolutionary relationships shown by the three-domain system is revised when new data are available. Even the largest and oldest clade that also include the earliest branches of the tree also needs to be rearranged sometimes. These changes occur rarely at the top levels of classification, but among species designations, revision often occurs.

Answer 6

Chapter 18, Problem 5FTB

Summary Introduction

To review:

The given blank space in the statement, “Species designations may change when researchers ___. The biological species definition is difficult to apply to organisms that . An alternative species definition, known as the _, instead designates species on the basis of _____.”

Introduction:

The classification of species based on the hypothesis of evolutionary relationships shown by the three-domain system is revised when new data are available. Even the largest and oldest clade that also include the earliest branches of the tree also needs to be rearranged sometimes. These changes occur rarely at the top levels of classification, but among species designations, revision often occurs.

Answer 7

Chapter 18, Problem 5FTB

Summary Introduction

To review:

The given blank space in the statement, “Species designations may change when researchers ___. The biological species definition is difficult to apply to organisms that . An alternative species definition, known as the _, instead designates species on the basis of _____.”

Introduction:

The classification of species based on the hypothesis of evolutionary relationships shown by the three-domain system is revised when new data are available. Even the largest and oldest clade that also include the earliest branches of the tree also needs to be rearranged sometimes. These changes occur rarely at the top levels of classification, but among species designations, revision often occurs.

Answer 8

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Answer 9

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Answer 11

Ch. 18 - The science of naming and classifying organisms is...Ch. 18 - 2. 2. A scientific name consists of a(n) _________...Ch. 18 - In Linnaean classification, the eight major...Ch. 18 - 4. Systematists determine the evolutionary...Ch. 18 - Prob. 5FTB Ch. 18 - The number of named species is about __________,...Ch. 18 - What contributions did Linnaeus and Darwin make to...Ch. 18 - What features would you study to determine whether...Ch. 18 - What techniques might you use to determine whether...Ch. 18 - 4. Only a small fraction of the total number of...

Solution Summary: The author explains that the biological species definition is difficult to apply to organisms that reproduce asexually.

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