天气预报 > 其他 > 卵生鱼体外受精是怎么一个过程
卵生鱼体外受精是怎么一个过程
更新时间: 2020-09-25 00:00:00  

体外受精的话 简单来讲 就是成熟的雌性的鱼先把卵产下, 然后由雄性的鱼把精子撒在上面, 感觉有点像播种的时候撒种子一样 ,这样的话就完成受精了.(雌鱼将卵排在有充足养料和光线的水草或岩石上 雄性鱼便把精子也排在这里。)

关键词: 体外 受精 怎么 一个 过程

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