Question

Trophic levels in ecosystem is formed by :

• A. Only herbivores
• B. Only plants
• C. Bacteria
• D. Organisms linked in food chain

Answer 1

The correct option is D

Organisms linked in food chain

That word trophic has come from the greek word “trophos” meaning feeder. So each “trophic level” represents, the organisms in one feeding level. That is, the first trophic level is made up of producers, then primary consumers, secondary consumers, tertiary consumers or top carnivores and decomposers - as we go successively from one trophic level to another.