Answer: food web.
- A food web
- B only a food pyramid
- C single food chain
- D simple cycle
Correct answer: A. food web
Explanation: A food web is a network of interconnected food chains.
Energy pyramid showing a simple food chain (producer to herbivore to carnivore) with energy decreasing roughly tenfold at each trophic level.
Concept context
Ecosystems, food chains, energy flow, nutrient cycles, biodiversity, and conservation.