... in general, are simply an extreme example of the diversification and complex organization of local energy systems. From this standpoint, everything that has happened in the world since the first spark of life occurred on earth billions of years ago is a natural process of evolution, in which mobile life forms undergo natural selection and become more adept at survival through millions ... ...

• Word Count: 3556
• Approx Pages: 14
• Has Bibliography
• Grade Level: Undergraduate