ACHIEVE FOR  HOW LIFE WORKS 3E (4-TERM)
ACHIEVE FOR HOW LIFE WORKS 3E (4-TERM)
3rd Edition
ISBN: 9781319508760
Author: Morris
Publisher: MAC HIGHER
bartleby

Concept explainers

bartleby

Videos

Question
Book Icon
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.           

Blurred answer
Students have asked these similar questions
State the five functions of Globular Proteins, and give an example of a protein for each function.
Diagram of check cell under low power and high power
a couple in which the father has the a blood type and the mother has the o blood type produce an offspring with the o blood type, how does this happen? how could two functionally O parents produce an offspring that has the a blood type?
Knowledge Booster
Background pattern image
Biology
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Text book image
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Text book image
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Text book image
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Biology
ISBN:9781305967359
Author:STARR
Publisher:CENGAGE L
Text book image
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Text book image
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Mechanisms of Genetic Change or Evolution; Author: Scientist Cindy;https://www.youtube.com/watch?v=5FE8WvGzS4Q;License: Standard Youtube License