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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Chapter 21.4, Problem 1R
Summary Introduction
To review:
The classification of the tree according to the possible classification which contains a paraphyletic group.
Given:
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:
Monophyletic, paraphyletic, and polyphyletic fall under the types of classification category, which reveals the relationship of the evolution of the organisms. 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 of organisms. Paraphyletic is the group which includes ancestors but some of the descendants are of the ancestors.
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Life: The Science of Biology
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