A food chain is a different relationship between plants and animals. They eat each other and transfer energy.
Every creature in the food chain is important.
Food chains support flora and fauna in ecosystems.
Source of image:
https://www.shutterstock.com/image-vector/diagram-showing-food-chain-illustration-1983231710
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
