Human Biology (MindTap Course List)
11th Edition
ISBN: 9781305112100
Author: Cecie Starr, Beverly McMillan
Publisher: Cengage Learning
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Question
Chapter 23, Problem 1RQ
Summary Introduction
To distinguish: Microevolution and macroevolution.
Introduction: Evolution is a process that is governed by natural selection and is defined as the changes that accumulate in a species in the course of time. These changes are inherited in offspring.
Expert Solution & Answer
Explanation of Solution
The following table shows the difference between microevolution and macroevolution:
Criteria | Microevolution | Macroevolution |
Definition | Gene level changes in individual species. | Gene level changes in multiple species. |
Level | Species level | All taxon levels |
Scale | Small-scale | Large-scale |
Species | Within species | Between species |
Period | Few generations | Longer periods of time that span up to eras. |
Factors |
Mutation, Selection, Gene flow, Genetic drift. | Extended microevolution |
Basis | Molecular level | Fossil data |
Occurs when | Always | High post mass extinction |
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Chapter 23 Solutions
Human Biology (MindTap Course List)
Ch. 23 - Prob. 1RQCh. 23 - As shown in Figure 23.25, there is considerable...Ch. 23 - Prob. 3RQCh. 23 - Prob. 4RQCh. 23 - Prob. 5RQCh. 23 - Prob. 6RQCh. 23 - Prob. 1SQCh. 23 - The relative numbers of different genes (alleles)...Ch. 23 - A difference in survival and reproduction among...Ch. 23 - The fossil record of evolution correlates with...
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- Understand how the Hardy-Weinberg principle is used to explain the process of microevolution.arrow_forwardDistinguish between the process of natural selection and the inheritance of acquired characteristics.arrow_forwardIdentify and explain the essential ingredients ofevolution by natural selection.arrow_forward
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