同热剂(一种有机磷杀虫剂)
One possible division is between homeotherms and poikilotherms. 一种可能的划分是恒温动物和变温动物。
One problem with this classification is that even classic homeotherms experience periods of reduced temperature. 这种分类的一个问题是，即使是典型的恒温动物也经历了降低体温的时期。
An organism that generates heat to maintain its body temperature,typically above the temperature of its surroundings;a homeotherm. 恒温动物能产生热量维持体温的生物体，其体温典型高于其周围环境的温度;温血动物
An organism that generates heat to maintain its body temperature, typically above the temperature of its surroundings;a homeotherm. 恒温动物能产生热量维持体温的生物体，其体温典型高于其周围环境的温度；
Therefore the next distinction was made between animals that maintain a constant body temperature, called homeotherms,those whose body temperature varies with their environment, called poikilotherms. 因此又出现了恒温动物(即保持恒定体温的动物)和变温动物(即体温随外界环境的变化而改变的动物)这一区分方式。
