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Book 1984mic biology. The past several decades have witnessed an explosive growth in our knowledge of the many elements that are essential for life and maintenance of plants and animals. These essential elements include the bulk elements (hydro gen, carbon, nitrogen, oxygen, and sulfur), the macrominerals (香料 发表于 2025-3-23 16:36:23
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Springer Series in Optical Sciencesin 1925 (Berg, 1925; Bertrand and Macheboeuf, 1925). Although Bertrand and Nakamura (1936) first suggested that nickel may be an essential element, conclusive evidence for essentiality did not appear until 1970–1975. Thus, most of the studies on the biochemical, nutritional, and physiological roles of nickel were done subsequent to 1970.prick-test 发表于 2025-3-24 20:50:16
https://doi.org/10.1007/b138913ery, cadmium was recognized by Sovet as a potential health hazard with cadmium poisoning being a serious occupational disease (Prodan, 1932). Cadmium has thus been recognized for a long time as being toxic, but only rather recently has attention been given to its possible role as an essential element in biological systems.过时 发表于 2025-3-25 00:06:17
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