Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
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Question
Chapter 21.4, Problem 2R
Summary Introduction
To review:
The classification of the tree according to the possible classification which contains a polyphyletic group.
Given:
The table below shows the three types of classifications of the groups:
Classification one: | |
Named group Amphibian Mammalia Reptilian Aves |
Included taxa Frogs, salamanders, and caecilians Mammals Lizards, turtles, and crocodiles Birds |
Classification two: | |
Named group Amphibia Mammalia Reptilian |
Included taxa Frogs, salamanders, and caecilians Mammals Lizards, turtles, crocodiles, and birds |
Classification three: | |
Named group Amphibian Homothermia Reptilia |
Included taxa Frogs, salamanders, and caecilians Mammals and birds Lizards, turtles, and crocodiles |
Introduction:
The biological classification describes the relationship of the evolution of the organisms. There are three types of classification category. They are monophyletic, polyphyletic, and paraphyletic. Monophyletic is the group which has an ancestor and all the descendants are of the ancestor. Polyphyletic is the group which does not include the common ancestors in the group. Paraphyletic is the group which includes ancestors but some of the descendants are of the ancestors.
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Chapter 21 Solutions
Life: The Science of Biology
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