What types of organisms typically make up the base middle and the too I a food web?

In a typical food web, the base is usually composed of primary producers, such as plants and phytoplankton, which convert sunlight into energy through photosynthesis. The middle level consists of primary consumers, like herbivores, which feed on these producers, and secondary consumers, which are carnivores that eat herbivores. At the top of the food web are apex predators, such as large carnivores, which have few or no natural enemies. This structure illustrates the flow of energy and nutrients through different trophic levels in an ecosystem.