biological

CIBC also serves as a clearing-house for the export and import of biological agents for pest control world-wide.(加拿大帝国商业银行还作为世界范围内防治害虫的生物制剂进出口的交换所。)

Many biological processes are controlled by hormones.(许多生物变化过程都是由激素控制的。)

Biological systems have been doing this for billions of years.(生物系统亿万年来都在这样做。)

There is a biological rhythm for learning, though it affects different people in different ways.(学习是有生物节律的，尽管它对不同的人造成影响的方式不同。)

It is not, in principle, necessary for a biological system to age and die.(原则上来说，生物系统的衰老和死亡都不是必然的。)

Looking at the basic biological systems, the world is not doing very well.(从基本的生物系统来看，这个世界做得不够好。)

Indeed, stability of the biological clock's period is one of its major features.(的确，生物钟周期的稳定性是它的主要特征之一。)

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。)

Today, the mainstream belief among scientists is that race is a social construct without biological meaning.(今天，科学家们的主流观点是，种族是一种没有生物学意义的社会结构。)

This meant that some sort of biological clock was operating—and a very precise clock at that.(这意味着某种生物钟正在运作——而且是一个非常精确的生物钟。)