生物系统亿万年来都在这样做。
Biological systems have been doing this for billions of years.
这种物质现已被分子生物学家克隆。
我们在生物课上解剖了一只青蛙。
许多生物变化过程都是由激素控制的。
大多数生物在为情势所迫时都能适应。
Most living creatures are capable of adaptation when compelled to do so.
我在学物理、生物和化学。
我在生物学领域的大部分同事思维仍很僵化。
Most of my colleagues in biology are still very mechanistic in their thinking.
即使是生物专业的大学生都可能会反对动物实验。
总的来说，生物技术对发展中国家来说应该是好消息。
On balance, biotechnology should be good news for developing countries.
他开始了大学生活，课程表上包括生物、微积分和政治学。
He began college with a timetable that included biology, calculus and political science.
这两位生物学家惊奇地发觉，两组鸟都同样很好地活了下来。
The two biologists found, to their surprise, that both groups of birds survived equally well.
业界代表们申明他们只承诺维持森林的规模而不是其生物多样性。
Industry representatives made it clear that their commitment was only to maintain the extent of forests, not their biodiversity.
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。
To see the problem here more clearly, let's look at a different biological system, say, an acorn.
贝赞尼克正在潜水采集海洋生物。
这些生物体通过单性生殖进行繁殖。
生理学是研究生物功能的学科。
忽视疲劳感会打乱我们的生物钟。
Ignoring feelings of tiredness knocks our body clocks out of kilter.
生物燃料能够和传统燃料混合。
珊瑚礁是由相同的微生物累积形成的。
A coral reef is built by the accretion of tiny, identical organisms.
基因决定每个生物的特征。
所有的生物都由细胞组成。
生物被迫适应，以求生存。
鸟类、海洋生物以及海岸线都遭到重创。
寄生物传播的方式之一就是透过排泄物。
One of the ways the parasite spreads is through faecal matter.
生物多样性是里约地球峰会上的时髦用语。
最早的有性繁殖生物是自由漂浮的浮游生物。
The first organisms that reproduced sexually were free-floating plankton.
该地区有世界上野生生物最集中的区域之一。
The area has one of the world's greatest concentrations of wildlife.
人们担心宠物或野生生物会受到杀虫剂的影响。
People were concerned that pets or wildlife could be affected by the pesticides.
抗议者打着“救救我们的野生生物”字样的横幅。
时差是因为生物钟没有立即适应时间的改变而引起的。
Jet lag is caused because the body clock does not readjust immediately to the time change.
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