Question

Generally, the food chain has how many trophic levels?

• A. One
• B. Two
• C. Three or four
• D. Five

Answer 1

The correct option is C Three or four

The living organisms of an ecosystem are related through food chains, which gives rise to trophic levels in an ecosystem. Energy is transferred from one trophic level to the next through the food chains The various trophic levels are as follows-

1) Producers make their own food which is passed on to the next trophic level. For example, Plants.

2) Primary Consumers- It depends on the producers. For example, Rabbit.

3) Secondary consumers- It depends on the primary consumer for energy. For example, Bear.

4) Tertiary consumer-It depends on the secondary consumers for the food. For example, Eagle.