Which one of the following is the correct sequence of a food chain

Explanation

Tikdam: The correct sequence of a food chain is (a) Diatoms-Crustaceans-Herrings. Let me explain the sequence: Diatoms: Diatoms are microscopic algae that are primary producers in aquatic ecosystems. They form the base of the food chain by converting sunlight into energy through photosynthesis. Crustaceans: Crustaceans, such as small zooplankton, often feed on diatoms and other phytoplankton. They are herbivores or primary consumers in this context. Herrings: Herrings are small fish that feed on crustaceans and other small organisms. They are secondary consumers in this food chain. So, the correct sequence is Diatoms (primary producers) -> Crustaceans (primary consumers) -> Herrings (secondary consumers), and this corresponds to option (a) Diatoms-Crustaceans-Herrings.