The examples related to pre-existing traits being used by organisms for a new function and discuss whether exaptation or preadaptation would be an appropriate label. Introduction: Exaptation and preadaptation are the two terms with a slightly different meaning. An exaptation was coined by Stephen Jay Gould and Elisabeth, which means that the pre-existing traits used for a new function, whereas, “preadaptation” term given by George Gaylord which refers to a structure that has undergone changes along with natural selection.

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Answer 1

Question

Chapter 3, Problem 7PDT

Summary Introduction

To explain: The examples related to pre-existing traits being used by organisms for a new function and discuss whether exaptation or preadaptation would be an appropriate label.

Introduction: Exaptation and preadaptation are the two terms with a slightly different meaning. An exaptation was coined by Stephen Jay Gould and Elisabeth, which means that the pre-existing traits used for a new function, whereas, “preadaptation” term given by George Gaylord which refers to a structure that has undergone changes along with natural selection.

Summary Introduction

To determine: The examples of criticism regarding exaptation and preadaptation.

Introduction: An exaptation is a pre-existing trait used for a new, seemingly adaptive function. The term was coined by Stephen Jay Gould and Elisabeth Vrba, to improve the clarity of language when discussing this from “preadaptation”, as used by George Gaylord Simpson, referring to a structure that undergoes a change of function followed by tinkering by natural selection. Both terms are used by a biologist, with subtly different meanings.

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Answer 2

Question

Chapter 3, Problem 7PDT

Summary Introduction

To explain: The examples related to pre-existing traits being used by organisms for a new function and discuss whether exaptation or preadaptation would be an appropriate label.

Introduction: Exaptation and preadaptation are the two terms with a slightly different meaning. An exaptation was coined by Stephen Jay Gould and Elisabeth, which means that the pre-existing traits used for a new function, whereas, “preadaptation” term given by George Gaylord which refers to a structure that has undergone changes along with natural selection.

Summary Introduction

To determine: The examples of criticism regarding exaptation and preadaptation.

Introduction: An exaptation is a pre-existing trait used for a new, seemingly adaptive function. The term was coined by Stephen Jay Gould and Elisabeth Vrba, to improve the clarity of language when discussing this from “preadaptation”, as used by George Gaylord Simpson, referring to a structure that undergoes a change of function followed by tinkering by natural selection. Both terms are used by a biologist, with subtly different meanings.

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Answer 3

Question

Chapter 3, Problem 7PDT

Summary Introduction

To explain: The examples related to pre-existing traits being used by organisms for a new function and discuss whether exaptation or preadaptation would be an appropriate label.

Introduction: Exaptation and preadaptation are the two terms with a slightly different meaning. An exaptation was coined by Stephen Jay Gould and Elisabeth, which means that the pre-existing traits used for a new function, whereas, “preadaptation” term given by George Gaylord which refers to a structure that has undergone changes along with natural selection.

Summary Introduction

To determine: The examples of criticism regarding exaptation and preadaptation.

Introduction: An exaptation is a pre-existing trait used for a new, seemingly adaptive function. The term was coined by Stephen Jay Gould and Elisabeth Vrba, to improve the clarity of language when discussing this from “preadaptation”, as used by George Gaylord Simpson, referring to a structure that undergoes a change of function followed by tinkering by natural selection. Both terms are used by a biologist, with subtly different meanings.

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Answer 4

Question

Chapter 3, Problem 7PDT

Summary Introduction

To explain: The examples related to pre-existing traits being used by organisms for a new function and discuss whether exaptation or preadaptation would be an appropriate label.

Introduction: Exaptation and preadaptation are the two terms with a slightly different meaning. An exaptation was coined by Stephen Jay Gould and Elisabeth, which means that the pre-existing traits used for a new function, whereas, “preadaptation” term given by George Gaylord which refers to a structure that has undergone changes along with natural selection.

Summary Introduction

To determine: The examples of criticism regarding exaptation and preadaptation.

Introduction: An exaptation is a pre-existing trait used for a new, seemingly adaptive function. The term was coined by Stephen Jay Gould and Elisabeth Vrba, to improve the clarity of language when discussing this from “preadaptation”, as used by George Gaylord Simpson, referring to a structure that undergoes a change of function followed by tinkering by natural selection. Both terms are used by a biologist, with subtly different meanings.

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Answer 5

Chapter 3, Problem 7PDT

Summary Introduction

To explain: The examples related to pre-existing traits being used by organisms for a new function and discuss whether exaptation or preadaptation would be an appropriate label.

Introduction: Exaptation and preadaptation are the two terms with a slightly different meaning. An exaptation was coined by Stephen Jay Gould and Elisabeth, which means that the pre-existing traits used for a new function, whereas, “preadaptation” term given by George Gaylord which refers to a structure that has undergone changes along with natural selection.

Summary Introduction

To determine: The examples of criticism regarding exaptation and preadaptation.

Introduction: An exaptation is a pre-existing trait used for a new, seemingly adaptive function. The term was coined by Stephen Jay Gould and Elisabeth Vrba, to improve the clarity of language when discussing this from “preadaptation”, as used by George Gaylord Simpson, referring to a structure that undergoes a change of function followed by tinkering by natural selection. Both terms are used by a biologist, with subtly different meanings.

Answer 6

Chapter 3, Problem 7PDT

Summary Introduction

To explain: The examples related to pre-existing traits being used by organisms for a new function and discuss whether exaptation or preadaptation would be an appropriate label.

Introduction: Exaptation and preadaptation are the two terms with a slightly different meaning. An exaptation was coined by Stephen Jay Gould and Elisabeth, which means that the pre-existing traits used for a new function, whereas, “preadaptation” term given by George Gaylord which refers to a structure that has undergone changes along with natural selection.

Answer 7

Chapter 3, Problem 7PDT

Summary Introduction

To explain: The examples related to pre-existing traits being used by organisms for a new function and discuss whether exaptation or preadaptation would be an appropriate label.

Introduction: Exaptation and preadaptation are the two terms with a slightly different meaning. An exaptation was coined by Stephen Jay Gould and Elisabeth, which means that the pre-existing traits used for a new function, whereas, “preadaptation” term given by George Gaylord which refers to a structure that has undergone changes along with natural selection.

Answer 8

Summary Introduction

To determine: The examples of criticism regarding exaptation and preadaptation.

Introduction: An exaptation is a pre-existing trait used for a new, seemingly adaptive function. The term was coined by Stephen Jay Gould and Elisabeth Vrba, to improve the clarity of language when discussing this from “preadaptation”, as used by George Gaylord Simpson, referring to a structure that undergoes a change of function followed by tinkering by natural selection. Both terms are used by a biologist, with subtly different meanings.

Answer 9

Summary Introduction

To determine: The examples of criticism regarding exaptation and preadaptation.

Introduction: An exaptation is a pre-existing trait used for a new, seemingly adaptive function. The term was coined by Stephen Jay Gould and Elisabeth Vrba, to improve the clarity of language when discussing this from “preadaptation”, as used by George Gaylord Simpson, referring to a structure that undergoes a change of function followed by tinkering by natural selection. Both terms are used by a biologist, with subtly different meanings.

Answer 10

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Answer 12

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Answer 13

Ch. 3 - Prob. 1PDT Ch. 3 - Prob. 2PDT Ch. 3 - Prob. 3PDT Ch. 3 - Prob. 4PDT Ch. 3 - Prob. 5PDT Ch. 3 - Prob. 6PDT Ch. 3 - Prob. 7PDT

Solution Summary: The author explains that exaptation and preadaptation are two terms with a slightly different meaning.

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