Trophic levels are formed by?

Correct Answer: D. Organisms linked in food chain

Trophic levels are formed by organisms linked in a food chain. A trophic level represents a position in the food chain and is defined by the organism’s source of energy and nutrients. The primary producers, such as plants or algae, occupy the first trophic level as they convert sunlight into energy through photosynthesis. Herbivores that eat plants occupy the second trophic level, followed by carnivores or omnivores at higher trophic levels. Each transfer of energy between trophic levels forms a link in the food chain.