LIFE SCIENCE

Detailed explanation-1: -Herbivores are primary consumers, which means they occupy the second trophic level and eat producers. For each trophic level, only about 10 percent of energy passes from one level to the next.

Detailed explanation-2: -The second trophic level consists of insects, and the fourth trophic level consists of snakes.

Detailed explanation-3: -Secondary consumers are organisms that eat primary consumers for energy. Primary consumers are always herbivores, or organisms that only eat autotrophic plants. However, secondary consumers can either be carnivores or omnivores.