Energy Source

The energy source (the sun in this case) is vital for the food chain to start. The sun gives energy for the producers to make their own food. Because of this, the food chain is able to flow along smoothly and undisturbed. However, if the sun is taken out of the food chain, the consumers would become carnivores, feasting upon each other because producers are taken out of the food chain. Also, scavengers wouldn't have anything to eat, and the decomposers wouldn't have anything to decompose too. Soon the decomposers and the scavengers would become extinct.