What is the order of the food chain?

Trophic levels are the order the organism is placed on the food chain. These levels are divided into producers (first), consumers (second, third and fourth) and decomposers (fifth). their own source of energy.

The order of a food chain looks like this – sun (or light energy), primary producers, primary consumers, secondary consumers, and tertiary consumers.

Further Readings – 

1. Energy Flow in Ecosystem
2. Biodiversity – Species, Genetics & Ecosystem