Which of the following represents the second level of the trophic levels?

Herbivores are classified as primary consumers in the second trophic level. In a typical food chain, the first trophic level consists of producers, such as plants and algae, which convert sunlight into energy through photosynthesis. These producers serve as the primary source of energy for the next level, where herbivores (or primary consumers) feed on them to obtain their energy.

Carnivores, typically found in the third trophic level, feed on herbivores or other carnivores. Decomposers, which break down organic material, play a vital role in nutrient cycling but are not positioned in the traditional trophic levels as they recycle energy back into the ecosystem instead of consuming other organisms directly. Thus, herbivores, as primary consumers, accurately represent the second level of the trophic system.