无论是高等植物或是高等动物,他们的个体�育都是有一个细胞—受精卵开始的,这一事实说明了什么? 知乎 Template




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tomski无论是高等植物或是高等动物,他们的个体�育都是有一个细胞—受精卵开始的,这一事实说明了什么? 知乎 coloring