Trophic level

The video tutorial explains the structure of a food chain, starting with producers at the first level, followed by herbivores at the second level. It then discusses carnivores, which occupy the third and potentially fourth trophic levels. The concept of top carnivores, which are not preyed upon by other animals, is also introduced, highlighting their position at the highest trophic level.

What is the role of herbivores in the food chain?

Describe the significance of the fourth trophic level in a food chain.