endogenous excretion

例句：

1. 1. Endogenous excretion is a crucial factor in the body's metabolic processes.
   内源性排泄是身体代谢过程中的一个重要因素。
2. 2. The study found that endogeneous excretion plays a significant role in maintaining homeostasis.
   研究发现，内源性排泄在维持稳态中起着重要作用。
3. 3. The organism's ability to excrete waste products depends on its endogeneous excretion system.
   该生物体排出废物的能力取决于其内源性排泄系统。