Biology Now (Second Edition)
Biology Now (Second Edition)
2nd Edition
ISBN: 9780393631807
Author: Anne Houtman, Megan Scudellari, Cindy Malone
Publisher: W. W. Norton & Company
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Chapter 14, Problem 12TQ
Summary Introduction

In evolutionary biology, a common ancestral cell otherwise universal ancestor is a group of living organisms that share common characteristics. There are enormous evidences that suggest that all forms of life on earth has a common universal ancestor. A phylogenetic tree is constructed with the common ancestral organisms, different domains and various kingdoms.

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