The types of organisms that do not fit easily into the biological species concept. Introduction The process that involves in the generation of new and unique forms of life is referred to as speciation. A species indicate a closed gene pool, in which various alleles are shared only among the members of that species. In general, alleles are not shared with the members of other species. The most widely accepted and used the definition of a species is called the biological species concept (BSC). Ernst Mayr (1904 – 2005), the great evolutionary biologist, described the BSC.

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Chapter 21.1, Problem 4SAQ

Summary Introduction

To determine: The types of organisms that do not fit easily into the biological species concept.

Introduction The process that involves in the generation of new and unique forms of life is referred to as speciation. A species indicate a closed gene pool, in which various alleles are shared only among the members of that species. In general, alleles are not shared with the members of other species. The most widely accepted and used the definition of a species is called the biological species concept (BSC). Ernst Mayr (1904 – 2005), the great evolutionary biologist, described the BSC.

Summary Introduction

To determine: The species concept that would work best for asexual organisms.

Introduction The process that involves in the generation of new and unique forms of life is referred to as speciation. A species indicate a closed gene pool, in which various alleles are shared only among the members of that species. In general, alleles are not shared with the members of other species. The most widely accepted and used the definition of a species is called the biological species concept (BSC). Ernst Mayr (1904 – 2005), the great evolutionary biologist, described the BSC.

As the biological species concept is based on reproduction, obviously this concept cannot be applied to extinct species that are known through fossil records alone. For example, various “species” of dinosaurs and trilobites.

Morphospecies concept: This concept states that members belonging to the same species generally look alike. Thus, the similarities in the morphological characters of the given group of organisms can be used to determine species (all belong to a single species or two different species). This concept can be applied for extinct as well as asexual species.

Phylogenetic species concept (PSC): This concept accentuates that all the members belonging to a species share a common fate and common ancestry. This concept can be applied for extinct as well as asexual species.

Ecological species concept (ESC): This concept states that there is an exclusive connection between a niche and its species. ESC can be used to describe asexual species on the basis of its ecological characteristics, such as its nutritional needs.

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Answer 2

Question

Chapter 21.1, Problem 4SAQ

Summary Introduction

To determine: The types of organisms that do not fit easily into the biological species concept.

Introduction The process that involves in the generation of new and unique forms of life is referred to as speciation. A species indicate a closed gene pool, in which various alleles are shared only among the members of that species. In general, alleles are not shared with the members of other species. The most widely accepted and used the definition of a species is called the biological species concept (BSC). Ernst Mayr (1904 – 2005), the great evolutionary biologist, described the BSC.

Summary Introduction

To determine: The species concept that would work best for asexual organisms.

Introduction The process that involves in the generation of new and unique forms of life is referred to as speciation. A species indicate a closed gene pool, in which various alleles are shared only among the members of that species. In general, alleles are not shared with the members of other species. The most widely accepted and used the definition of a species is called the biological species concept (BSC). Ernst Mayr (1904 – 2005), the great evolutionary biologist, described the BSC.

As the biological species concept is based on reproduction, obviously this concept cannot be applied to extinct species that are known through fossil records alone. For example, various “species” of dinosaurs and trilobites.

Morphospecies concept: This concept states that members belonging to the same species generally look alike. Thus, the similarities in the morphological characters of the given group of organisms can be used to determine species (all belong to a single species or two different species). This concept can be applied for extinct as well as asexual species.

Phylogenetic species concept (PSC): This concept accentuates that all the members belonging to a species share a common fate and common ancestry. This concept can be applied for extinct as well as asexual species.

Ecological species concept (ESC): This concept states that there is an exclusive connection between a niche and its species. ESC can be used to describe asexual species on the basis of its ecological characteristics, such as its nutritional needs.

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Answer 3

Question

Chapter 21.1, Problem 4SAQ

Summary Introduction

To determine: The types of organisms that do not fit easily into the biological species concept.

Introduction The process that involves in the generation of new and unique forms of life is referred to as speciation. A species indicate a closed gene pool, in which various alleles are shared only among the members of that species. In general, alleles are not shared with the members of other species. The most widely accepted and used the definition of a species is called the biological species concept (BSC). Ernst Mayr (1904 – 2005), the great evolutionary biologist, described the BSC.

Summary Introduction

To determine: The species concept that would work best for asexual organisms.

Introduction The process that involves in the generation of new and unique forms of life is referred to as speciation. A species indicate a closed gene pool, in which various alleles are shared only among the members of that species. In general, alleles are not shared with the members of other species. The most widely accepted and used the definition of a species is called the biological species concept (BSC). Ernst Mayr (1904 – 2005), the great evolutionary biologist, described the BSC.

As the biological species concept is based on reproduction, obviously this concept cannot be applied to extinct species that are known through fossil records alone. For example, various “species” of dinosaurs and trilobites.

Morphospecies concept: This concept states that members belonging to the same species generally look alike. Thus, the similarities in the morphological characters of the given group of organisms can be used to determine species (all belong to a single species or two different species). This concept can be applied for extinct as well as asexual species.

Phylogenetic species concept (PSC): This concept accentuates that all the members belonging to a species share a common fate and common ancestry. This concept can be applied for extinct as well as asexual species.

Ecological species concept (ESC): This concept states that there is an exclusive connection between a niche and its species. ESC can be used to describe asexual species on the basis of its ecological characteristics, such as its nutritional needs.

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Answer 4

Question

Chapter 21.1, Problem 4SAQ

Summary Introduction

To determine: The types of organisms that do not fit easily into the biological species concept.

Introduction The process that involves in the generation of new and unique forms of life is referred to as speciation. A species indicate a closed gene pool, in which various alleles are shared only among the members of that species. In general, alleles are not shared with the members of other species. The most widely accepted and used the definition of a species is called the biological species concept (BSC). Ernst Mayr (1904 – 2005), the great evolutionary biologist, described the BSC.

Summary Introduction

To determine: The species concept that would work best for asexual organisms.

Introduction The process that involves in the generation of new and unique forms of life is referred to as speciation. A species indicate a closed gene pool, in which various alleles are shared only among the members of that species. In general, alleles are not shared with the members of other species. The most widely accepted and used the definition of a species is called the biological species concept (BSC). Ernst Mayr (1904 – 2005), the great evolutionary biologist, described the BSC.

As the biological species concept is based on reproduction, obviously this concept cannot be applied to extinct species that are known through fossil records alone. For example, various “species” of dinosaurs and trilobites.

Morphospecies concept: This concept states that members belonging to the same species generally look alike. Thus, the similarities in the morphological characters of the given group of organisms can be used to determine species (all belong to a single species or two different species). This concept can be applied for extinct as well as asexual species.

Phylogenetic species concept (PSC): This concept accentuates that all the members belonging to a species share a common fate and common ancestry. This concept can be applied for extinct as well as asexual species.

Ecological species concept (ESC): This concept states that there is an exclusive connection between a niche and its species. ESC can be used to describe asexual species on the basis of its ecological characteristics, such as its nutritional needs.

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Answer 5

Chapter 21.1, Problem 4SAQ

Summary Introduction

To determine: The types of organisms that do not fit easily into the biological species concept.

Introduction The process that involves in the generation of new and unique forms of life is referred to as speciation. A species indicate a closed gene pool, in which various alleles are shared only among the members of that species. In general, alleles are not shared with the members of other species. The most widely accepted and used the definition of a species is called the biological species concept (BSC). Ernst Mayr (1904 – 2005), the great evolutionary biologist, described the BSC.

Summary Introduction

To determine: The species concept that would work best for asexual organisms.

Introduction The process that involves in the generation of new and unique forms of life is referred to as speciation. A species indicate a closed gene pool, in which various alleles are shared only among the members of that species. In general, alleles are not shared with the members of other species. The most widely accepted and used the definition of a species is called the biological species concept (BSC). Ernst Mayr (1904 – 2005), the great evolutionary biologist, described the BSC.

As the biological species concept is based on reproduction, obviously this concept cannot be applied to extinct species that are known through fossil records alone. For example, various “species” of dinosaurs and trilobites.

Morphospecies concept: This concept states that members belonging to the same species generally look alike. Thus, the similarities in the morphological characters of the given group of organisms can be used to determine species (all belong to a single species or two different species). This concept can be applied for extinct as well as asexual species.

Phylogenetic species concept (PSC): This concept accentuates that all the members belonging to a species share a common fate and common ancestry. This concept can be applied for extinct as well as asexual species.

Ecological species concept (ESC): This concept states that there is an exclusive connection between a niche and its species. ESC can be used to describe asexual species on the basis of its ecological characteristics, such as its nutritional needs.

Answer 6

Chapter 21.1, Problem 4SAQ

Summary Introduction

To determine: The types of organisms that do not fit easily into the biological species concept.

Introduction The process that involves in the generation of new and unique forms of life is referred to as speciation. A species indicate a closed gene pool, in which various alleles are shared only among the members of that species. In general, alleles are not shared with the members of other species. The most widely accepted and used the definition of a species is called the biological species concept (BSC). Ernst Mayr (1904 – 2005), the great evolutionary biologist, described the BSC.

Answer 7

Chapter 21.1, Problem 4SAQ

Summary Introduction

To determine: The types of organisms that do not fit easily into the biological species concept.

Introduction The process that involves in the generation of new and unique forms of life is referred to as speciation. A species indicate a closed gene pool, in which various alleles are shared only among the members of that species. In general, alleles are not shared with the members of other species. The most widely accepted and used the definition of a species is called the biological species concept (BSC). Ernst Mayr (1904 – 2005), the great evolutionary biologist, described the BSC.

Answer 8

Summary Introduction

To determine: The species concept that would work best for asexual organisms.

Introduction The process that involves in the generation of new and unique forms of life is referred to as speciation. A species indicate a closed gene pool, in which various alleles are shared only among the members of that species. In general, alleles are not shared with the members of other species. The most widely accepted and used the definition of a species is called the biological species concept (BSC). Ernst Mayr (1904 – 2005), the great evolutionary biologist, described the BSC.

As the biological species concept is based on reproduction, obviously this concept cannot be applied to extinct species that are known through fossil records alone. For example, various “species” of dinosaurs and trilobites.

Morphospecies concept: This concept states that members belonging to the same species generally look alike. Thus, the similarities in the morphological characters of the given group of organisms can be used to determine species (all belong to a single species or two different species). This concept can be applied for extinct as well as asexual species.

Phylogenetic species concept (PSC): This concept accentuates that all the members belonging to a species share a common fate and common ancestry. This concept can be applied for extinct as well as asexual species.

Ecological species concept (ESC): This concept states that there is an exclusive connection between a niche and its species. ESC can be used to describe asexual species on the basis of its ecological characteristics, such as its nutritional needs.

Answer 9

Summary Introduction

To determine: The species concept that would work best for asexual organisms.

Introduction The process that involves in the generation of new and unique forms of life is referred to as speciation. A species indicate a closed gene pool, in which various alleles are shared only among the members of that species. In general, alleles are not shared with the members of other species. The most widely accepted and used the definition of a species is called the biological species concept (BSC). Ernst Mayr (1904 – 2005), the great evolutionary biologist, described the BSC.

As the biological species concept is based on reproduction, obviously this concept cannot be applied to extinct species that are known through fossil records alone. For example, various “species” of dinosaurs and trilobites.

Morphospecies concept: This concept states that members belonging to the same species generally look alike. Thus, the similarities in the morphological characters of the given group of organisms can be used to determine species (all belong to a single species or two different species). This concept can be applied for extinct as well as asexual species.

Phylogenetic species concept (PSC): This concept accentuates that all the members belonging to a species share a common fate and common ancestry. This concept can be applied for extinct as well as asexual species.

Ecological species concept (ESC): This concept states that there is an exclusive connection between a niche and its species. ESC can be used to describe asexual species on the basis of its ecological characteristics, such as its nutritional needs.

Answer 10

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Answer 13

Ch. 21.1 - Prob. 1SAQ Ch. 21.1 - Prob. 2SAQ Ch. 21.1 - Prob. 3SAQ Ch. 21.1 - Prob. 4SAQ Ch. 21.1 - Prob. 5SAQ Ch. 21.2 - Prob. 6SAQ Ch. 21.2 - Prob. 7SAQ Ch. 21.3 - Prob. 8SAQ Ch. 21.3 - Prob. 9SAQ Ch. 21.3 - Prob. 10SAQ

Solution Summary: The author explains the biological species concept, which is based on the transfer of genetic information and can be applied to extinct and asexual species.

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