However, smell is not simply a biological and psychological phenomenon.

然而，气味不仅仅是一种生理和心理现象。

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Darwin eventually put forward a model of biological evolution.

达尔文最终提出了一套生物进化的理论模式。

《柯林斯英汉双解大词典》

To see the problem here more clearly, let's look at a different biological system, say, an acorn.

为了把这里的问题看得更清楚，让我们看一种不同的生物系统，比如说，橡实。

《柯林斯英汉双解大词典》

"I think that the biggest strategic threat to the United States faces today is the possibility of another 9/11 with a nuclear weapon or a biological agent of some kind."

VOA: standard.2010.02.14

It turns out everything around us moves energy around in one way or the other If you're a biological system, you're burning calories, burning ATP.

我们周围的一切物质,都以这样那样的方式传递着能量,如果你是一个生物系统，你会燃烧卡路里，燃烧。

麻省理工公开课 - 热力学与动力学课程节选

Which is just to say, we need to offer a biological/physical explanation of what goes on in near-death experiences.

那也只不过是说,关于濒死体验我们需要给出,一个生物学或物理学的解释

耶鲁公开课 - 死亡课程节选

Understand: He is not talking about growing a biological person in a test-tube and requiring him to be Dad.

WSJ: The Weekend Interview: Will Google's Ray Kurzweil Live Forever?

She did so using a biological gizmo called a morpholino.

ECONOMIST: A virus has been subverted into helping its host

This way, your Will can include specific language that categorizes the adopted child in the same manner as a biological child or a child whose adoption has already been finalized.

FORBES: Factors to Consider When Estate Planning in an Adoptive Family