最后一点是，精神疾患具有某些生物学病因，这包括遗传因素以及大脑中的化学品失衡。
Lastly, there are some biological causes of mental disorders including genetic factors and imbalances in chemicals in the brain.
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.
作物基因表达一方面受到遗传基因的控制，另一方面，环境中的生物与非生物因素对基因表达也起到重要的调节作用。
Heredity is controlled by genes, but their expression is turned on and off throughout life depending upon biotic and abiotic factors in environment.
这意味着先不考虑其他因素，若生物学家仅凭遗传变化具有规律性这一假设推算两个世系分化的时间，那么这种推算出来的时间可能就已经错了。
This means, among other things, that when biologists have calculated how long ago two lineages diverged by assuming change is regular, they may have their dates wrong.
研究人员认为，该结果可能与某些遗传或生物差异以及环境因素有关。
Researchers said the results might be related to some genetic or biological differences, as well as environmental factors.
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.
鉴于该受体的生物学功能，编码AT 1受体的基因(AGTR1)已成为高血压和冠心病遗传危险因素研究的重要候选基因。
Because of the physiological role of this receptor, the AT1R gene (AGTR1) has been a candidate gene for hypertension and coronary heart disease.
人脑中遍布着上万亿这样的关键连接，而遗传因素、人生经历和生物化学的相互影响、相互作用又塑造了这些连接的形成。
There are trillions of these critical connections, and they are shaped by the interplay of heredity, experience and biochemistry.
可能影响动物实验结果的遗传学、微生物学、寄生虫学、环境和饲料营养等因素。
Genetic, microbiological, parasitic, environmental and nutritional factors influencing the outcome of animal experiment.
可能影响动物实验结果的遗传学、微生物学、寄生虫学、环境和饲料营养等因素。
Genetic, microbiological, parasitic, environmental and nutritional factors influencing the outcome of animal experiment.
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