amitosis

例句：

1. 1.The plant produces acorns, which are used as food and building materials.
   这种植物产生坚果，用作食物和建筑材料。
2. 2.Amitosis is the process of cell division without the formation of a visible bud.
   无核分裂是细胞分裂过程中不形成可见芽的过程。
3. 3. In some species, amitoses occur naturally, while in others, they are induced by environmental factors.
   在某些物种中，无核分裂自然发生，而在其他物种中，它们是由环境因素诱导的。