All the complex life-forms that we see were formed through symbiogenesis, a term coined by the person who first recognized its existence, Lynn Margulis. Symbiogenesis is the formation of more complex life-forms from the union of two dissimilar, simpler ones. The mitochondria in our cells, that power our metabolism, were formerly free living bacteria, as are the chloroplasts that power those of plants. All complex life-forms are generated through just this kind of cooperative joining, over long evolutionary time, with information built upon information, complexity always increasing in order to
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