Essentials of Biology (5th International Edition)
Essentials of Biology (5th International Edition)
5th Edition
ISBN: 9781259660269
Author: Sylvia S. Mader, Dr., Michael Windelspecht
Publisher: Mcgraw-Hill
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Chapter 22, Problem 3TC
Summary Introduction

To determine:

What led to evolution from simple to more complex organism and what are the advantages of being complex organism.

Introduction:

Charles Darwin published a book on ‘on the origin of species’ in 1859 proposing theory of evolution. Theory of evolution was not just a Theory but a concrete fact, which talks about how an organism changes or transform overtime in order to adapt the environment for its own survival and to produce its offspring. The life on earth has evolved from Unicellular organism to multicellular one with various organs and systems. There was some selective pressure led to this evolution.

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