What are trophic levels? Give an example of a food chain and state the different trophic levels in it.
The various levels or stages in a food chain at which the transfer of food takes place is called trophic level, e.g., food chain. Grass → Grasshopper → frog → snake → peacock Grass — Producer — trophic level. Grasshopper — I Consumer (Herbivores) — II trophic level’. Frog — II Consumer (Carnivores) — II trophic level Snake — III Consumer (Carnivores) — III trophic level Peacock — IV Consumer (Carnivores) — V trophic level.