So often in the past psychiatry tended to "blame the mother," but we now understand that so many factors - genetic, biologic, the role of father and siblings, and environmental - all play their part.
The mechanism of macrobenthos assimilating heavy metals and the effect of biologic and abiological factors to the enrichment content of heavy metals are discussed.
探讨底栖动物对重金属的吸收机制和生物、非生物因子对底栖动物重金属富集量的影响。
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Land reclamation, city and port development, pollution and excessive use of coastal biologic resource are considered as the main environmental forcing factors to the degradation of coastal wetlands.