Answer: Flow of energy from producers to consumers.
- A How organisms within a population reproduce
- B Flow of energy from producers to consumers
- C How water moves through an ecosystem
- D How organisms disperse across a habitat
Correct answer: B. Flow of energy from producers to consumers
Explanation: A food chain shows the sequence of who eats whom in an ecosystem, tracing the flow of energy and matter.
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.