It is a group of plants or animals that are interconnected in the form of one creature being eaten as food by another.
In a food chain, each organism occupies a special position called a trophic level that determines its position in the food chain as a producer, consumer, or decomposer.
Food chain predicts the following:
An organism's trophic level and how they interact with one another.
It demonstrates how the existence of one species impacts the presence of another.
It depicts the movement of nutrition and energy throughout the ecosystem.