摘要
适应是生物界中普遍存在的一种现象，无论是植物、动物还是微生物，无论是生物的形态结构、生理机能还是行为习性，无一例外。但是，这种适应是相对的，而不是绝对的。同时，生物体在对环境的适应过程中本身也在改变着环境。
Adaptability is a universal phenomenon in all living things,which can be foand in plants,animals,microbes or in their structural shapes,physiological functions and their habits and characteristics. However,this adaptability is only relative rather than absolute,for living things are changing theenvironment while they are adapting to it.
关键词
适应
普遍性
相对性
生物界
adaptability
universality
relativity
