Each step or level of a food chain forms a trophic level. Which of the following is at the first trophic level of the said food chain?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. Autotrophs or the producers.
Autotrophs, also known as producers, occupy the first trophic level of a food chain. These are typically green plants, algae, and some bacteria that produce their own food using sunlight, carbon dioxide, and water through the process of photosynthesis. By converting solar energy into chemical energy, they create organic compounds that serve as food for other organisms. All higher-level consumers—herbivores, carnivores, and omnivores—depend either directly or indirectly on the energy produced by autotrophs. Without producers at the base, no food chain can exist, making them essential for maintaining the flow of energy and the balance of ecosystems.