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目次引言一、实验材料和实验方法二、实验结果和讨论(一)各种不同的恒温环境中孵化的情况1.温度对于发育全程和各个发育时期的关系2.胚胎发育速度的温度系数3.温度对于金鱼卵孵化的影响.(二)变温环境下孵化三、结论参考文献外文摘要引言增高环境温度会加速胚胎的发育,这早巳是众所周知的事实。Needham(1942)在讨论温度和形态发生过程的关系时,曾指出温度的变化会显著地扰乱发育过程,并且不同的
Table of Contents Introduction I. Experimental Materials and Experimental Methods 2. Experimental Results and Discussion 1. Incubation in various constant temperature environments 1. Relationship between temperature and whole development period and each developmental stage 2. Temperature coefficient of embryonic development speed The Effect of Temperature on the Hatching of Goldfish Eggs (II) Incubation at Variable Temperatures III. CONCLUSIONS It is a well-known fact that increasing the ambient temperature accelerates embryonic development. Needham (1942), in discussing the relationship between temperature and morphogenesis, pointed out that changes in temperature significantly disturb the developmental process and that different