heterotrophism

例句：

1. 1. Heterotrophic bacteria can break down organic matter and release nutrients back into the environment.
   异养细菌可以分解有机物并释放养分回环境。
2. 2.The study of heterotrophic life is essential for understanding the evolution of life on Earth.
   研究异养生命对于理解地球上生命的演化至关重要。
3. 3.Heterotrophic organisms rely on external sources of energy and nutrients to survive.
   异养生物依赖外部的能量和养分来生存。