Ecosystem.

An ecosystem (Οικοσύστημα) or ecological system is a system with organisms. In it environment and organisms are together.

This is a part of science biology.

Ecosystems are in different climatic zones.

Plants and animals are parts of many ecosystems.

Source of image:

https://www.shutterstock.com/image-vector/ecosystem-biodiversity-concept-different-forest-habitats-2148562075