prostomata

例句：

1. 1. The study of prostomata is crucial for understanding the evolution of life on earth.
   研究原生动物对于理解地球上生命演化至关重要。
2. 2.Prostomata are the basic units of cellular organization in many species.
   在许多物种中，原生动物是细胞组织的基本单位。
3. 3.The protist community plays a significant role in the ecosystem, as they can affect the balance of nutrients and energy flow.
   原生生物群落对生态系统起着重要作用，因为它们可以影响营养物质和能量流动的平衡。