LIBROS DEL AUTOR: harald schraer

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  • Biological Calcification
    Harald Schraer
    The deposition of calcium-containing salts is a widespread phenomenon in both the plant and animal kingdoms. Its occurrence suggests a generalized biological adaptation to environments rich in calcium. Indeed, the Archaean ocean was rich in calcium carbonate, and traces of ancient organisms have been found in lime­ stones estimated to be about 2. 7 bi...
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