The reproduction speed of bacteria is surprisingly fast.
细菌的繁殖速度快得令人咂舌。
Since an individual's social environment affects its success in terms of survival and reproduction, you might expect such changes to influence the speed or direction of evolutionary change.
既然，个体的社会环境会影响到它的生存和繁殖能力，那么进化的速度或方向会受到这些变化的影响也许就在会预料之中了。
In tissue culture of 13 reptant chrysanthemum varieties, direct reproduction of stem apex and axillary bud showed the highest speed and heridity stability.
对13个品种的地被菊进行组培快繁，结果：①以茎尖和腋芽直接扩繁速度最快，遗传稳定性强；
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