This is the 18365th most frequent Russian word.
экосистему
Ecosystem: a community of living organisms interacting with their physical environment.
The word 'экосистему' refers to the natural community and its environment being the subject of study.
Мы изучаем экосистему леса на уроке биологии.
We are studying the forest ecosystem in biology class.
The word 'экосистему' is used here to denote the environmental system being affected by pollution.
Чрезмерное загрязнение угрожает экосистему океана.
Excessive pollution threatens the ocean's ecosystem.
Here, 'экосистему' describes a specially designed combination of components to replicate ecological interactions.