其中的一个难题是，复杂的疾病——比如偏头痛——可能由众多基因引起，也可能由其它生物化学和环境因素引起。
One problem is that complex disorders - like migraines - can be caused by multiple genes as well as by other biochemical and environmental factors.
没有单一原因引起抑郁症的。所以，抑郁症很可能是遗传、生物化学、环境和心理因素共同作用的结果。
Most likely, depression is caused by a combination of genetic, biological, environmental, and psychological factors.
生物化学家詹姆斯·洛夫·洛克就这种相拥状况写道：“物种的进化与其所处环境的演变密不可分。”
Biochemist James Lovelock writes of this embrace, "the evolution of a species is inseparable from the evolution of its environment."
学习课程可包括化学，生物化学，环境科学，制药学，统计分析及其他学科。
Courses of study may include chemistry, biochemistry, environmental science, pharmacology, statistical analysis, and other disciplines.
一切环境的碳酸盐沉积物，基本上都是古代生物化学体系的产物。
Carbonate sediments in all environments are basically products of an ancient biochemical system.
结果表明，镘头组下部的硅质层是同生期生物化学作用成因的，形成于潮下低能浅水环境；
The siliceous rocks of the lower Mantou formation were resulted from the biochemical action during the sedimentary period and formed in the environment of low-tide shallow sea.
这本手册将在核心化学方面不仅有用，在食品分析此外，临床和生物化学分析，毒物，环境和辩论学测试并且精炼。
This handbook will be of use not only in core chemistry but also in food analysis, clinical and biochemical analysis, toxicological, environmental and forensic testing and refining.
土地覆盖和土地覆盖的自然变更，在地球系统的气候和生物化学全球尺度模式中扮演着重要角色，对全球生态环境产生着巨大的影响。
Land cover and its natural alteration, which play an important role in climate system and biochemistry pattern in globe scale, have brought tremendous effect to global entironment.
结果腹主动脉瘤的形成是遗传、解剖、环境、生物化学等多因素相互影响和共同作用的结果。
Results The formation of AAA are associated with heredity, anatomy, environment and biochemistry and other factors. All factors influence and interact with each other.
课程包括植物生理学、生物化学、除虫剂使用规章、森林虫害预防、有害化学物质清理和水环境清理。
Courses may include plant physiology, biochemistry, current pesticide regulations, forest pest suppression, chemical decontamination, and aquatic weed management.
几章讨论包括有机化学，生物化学，环境化学和工业化学的化学的辽阔的领域。
Several chapters discuss broad areas of chemistry including organic chemistry, biochemistry, environmental chemistry, and industrial chemistry.
简要概述了在环境监测质量控制考核中，如何保证生物化学需氧量测定的可靠性和准确性。
The paper talks about how to insure the accuracy and dependability of BOD value when assessing the quality control in environmental monitoring.
简要概述了在环境监测质量控制考核中，如何保证生物化学需氧量测定的可靠性和准确性。
The paper talks about how to insure the accuracy and dependability of BOD value when assessing the quality control in environmental monitoring.
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