闭花受精

例句：

1. 1. In the process of natural selection, some species undergo a process called "closed-flower fertilization."
   在自然选择的过程中，有些物种会经历一种叫做“闭花受精”的过程。
2. 2. This phenomenon is closely related to the concept of genetic diversity and plays an important role inthe evolution of life forms.
   这种现象与遗传多样性的概念密切相关，对于生命形态的进化起着重要的作用。
3. 3. The closed-flower fertilization process helps plants to produce more offspring and ensure the survival of their species.
   闭花受精过程有助于植物产生更多的后代，确保其物种的生存。