What is a food chain?
BiologyClass 10CBSEAnswered 28 May 2026
Answer
A food chain shows how energy and nutrients transfer from one organism to another through feeding relationships always starting with a producer.
Grass → Grasshopper → Frog → Snake → Eagle
(Producer) → (Primary) → (Secondary) → (Tertiary) → (Apex)
- Each step = a trophic level
- Only ~10% of energy passes to the next level (10% law)
- Food chains interconnect to form a food web
Summary: A food chain shows the linear flow of energy from producers to consumers, with energy decreasing at each trophic level.
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