As ectotherm animals , insects developed the cold tolerance mechanism adapting lower temperature during the evolution .
昆虫是外温动物,在长期的进化过程中形成了一整套适应不良低温环境的抗寒机制。
Temperature is an important factor affecting physiological activity of ectotherm .
温度是影响变温动物生理活动的重要因素之一。