Introduction

The domestication of plants and animals may be the most important development in the past 13,000 years of human history. Although authorities differ in attributing dates to particular events, this domestication was a necessary prelude to the evolution of civilization as we know it. Previously, human migrations followed seasonal shifts in wild food supplies. Subsequently, settlements appeared near gardens, orchards, and pastures. Food production increased, supporting local increases in population and the spread of humans to previously unoccupied geographical regions. Increases in the efficiency of food acquisition and storage made possible the development of crafts and trades, since it was no longer necessary for every family to spend time hunting and gathering food. Ultimately, the social and political systems that evolved came to govern much of human activity.

The Enzymes Effect

The Enzymes Effect

Enzymes which are usually proteins help to begin, aid in and accelerate every chemical reaction in the human body. Enzymes are the bodys main workforce, much like a construction company building a skyscraper.

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