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The first of these revolutions was developed in the nineteenth century by CharlesDarwin, who proposed that the millions of animal species, of which we belong, we have a common origin, derived from the same trunk.
Darwin was able to explain in a simple, diversity of life on the planet
The second revolution is that the genetic code is common to all species and we have inherited from a common ancestor gene information and expression are common to every organism, DNA, RNA, the genetic code, etc.. is universal.
The third revolution, the most recent, is the fact that all animals learn not only have a common origin and share a universality in the basic processes.
All animals share the same genetic tree inherit a common genetic tree
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