Which term describes the total feeding relationships in an ecosystem, not just a single chain?

• A. Food chain
• B. Trophic level
• C. Food web
• D. Keystone species

Answer: (C)

The total feeding relationships in an ecosystem are best described by a food web. A food chain shows just one linear path of energy transfer from producers to consumers, which is limited and incomplete. A food web, on the other hand, maps all the interconnected feeding relationships, revealing how many species have multiple prey or predators and how energy moves along many pathways. This networked perspective captures the ecological complexity and the potential cascading effects when species are added or removed. Trophic level is simply a position within that system (like producer or primary consumer), and keystone species refers to a species with a disproportionately large influence, not the overall map of feeding relationships.