Final answer:
The complex interactions and matter cycling and energy flow within ecosystems facilitated by species interactions in food webs are known as ecological interactions or ecosystem dynamics. Food webs provide a detailed illustration of these interactions.
Step-by-step explanation:
The variety of processes, including matter cycling and energy flow within ecosystems that result from species interacting with one another in food webs is called ecological interactions or ecosystem dynamics.
Food webs represent multiple pathways through which energy and matter flow through an ecosystem, illustrating the complex trophic interactions among species. Unlike a simple food chain, a food web diagram shows the intricacies of these relationships, where organisms can feed on or be preyed upon by multiple other species across various trophic levels, creating a more realistic and detailed depiction of ecological relationships.