蝙蝠并不是唯一一种现在面临这一难题的生物。
Bats are not the only creatures to face this difficulty today.
原则上来说,生物系统的衰老和死亡都不是必然的。
It is not, in principle, necessary for a biological system to age and die.
这并不是说生物钟的周期是固定不变的。
This is not to suggest that the period of this biological clock is immutably fixed.
这些生物不是自然界的一部分。
但这并不是说我们是没有巨大潜力的生物。
But this is not to say that we are not creatures of tremendous potential.
人并不是唯一说谎的生物。
这不是唯一一家在高效生物燃料领域发表声明的公司。
It is not the only company with big claims for efficient bioethanol yields.
但决定这些狼命运的就是这些州的政客们,而不是联邦的生物学家。
Yet it is state politicians, not federal biologists, who now control the fate of wolves.
生物学,总体来说,自然学科不是我的理论强项。
Biology - and science in general - was not my academic strong suit.
这个结构非常有趣,它不是生物,也不是一种单一的科学。
And this structure is interesting, it's not biology, it's not a single science.
它看上去更像科幻电影中的异类生物,而不是一条鱼。
It looked more like an alien from a sci-fi movie than a fish.
人们问,生物柴油是不是一种危险的燃油。
事实上,许多生物特征既不是适应性的体现也不是选择的结果。
Many are neither adaptations nor the result of selection at all.
应该不是光又会产生物质的意思。
但是人反对人的竞争不是象¡生物学中所想象的那种简单过程。
Butt the competition of man against man is not the simple process envisioned in biology.
然而,为FGF的生物学的活动的表情肝磷脂不是本质的。
However, heparin was not essential for the expression of the biological activity of FGF.
特别是一个更像机器而不是人的生物。
名人博客:生物进化不是一件简单的事,即使是在厄瓜多尔-加拉巴哥群岛。
如果不是生物化学,人们还不会知道它们的纯在。
Without biochemistry, people would not know of their existence.
生物学不是我研究的范围。
我们都是生物,但是我们不是万能的。
真正的生物知识对农民而言,并不是那么的重要。
As far as a farmer is concerned, biological knowledge is not so important.
但是人反对人的竞争不是象生物学中所想象的那种简单过程。
But the competition of man against man is not the simple process envisioned in biology.
“敬畏生命”中的生命,不是仅指人类,更强调包括人类在内的地球上所有有生命的生物。
"Life" refers to all living things on the earth as well as human being.
它的生物活性水平可能不是特别高,但这点也并不重要。
The level of biological activity may not be particularly high, but that does not matter.
好吧,但我说的可是有智能的生物,不是乳酸菌。
OK, but what I'm talking about is intelligent life, not yogurt.
环不是该类化合物具有生物活性的必需骨架部分。
D ring is not a necessary backing part which has biological activity in these compounds.
环不是该类化合物具有生物活性的必需骨架部分。
D ring is not a necessary backing part which has biological activity in these compounds.
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