Answer:
Every ecosystem has a food chain and the food chain starts with producers( that can make food), consumers( that feed on the food made by producers) and decomposers( recycle the nutrients back into the soil).
Here, the food chain list will be-
Fruit trees( producers)→ birds/monkeys( primary consumers)→tiger ( secondary consumers)
This list consists of producers, consumers (primary and secondary) which is an essential component of ecosystem.