The historical sciences involve direct and ultimate causal chains. In most physics and chemistry, concepts like “ultimate cause”, “purpose” and “function” are meaningless, but those concepts are of the utmost importance if we want to understand them. Poster DJ lose your mind find your soul. Life systems in general and human activities in particular. For example, if you study the arctic wild rabbits whose fur turns from brown in the summer to white in the winter, the evolutionary biologist could not be satisfied with identifying the fairly direct direct cause that the fur The reason for the change in color is due to the molecular structure of pigments and their biosynthesis methods.
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