ReNEET 2026 · Biology · Q178EcosystemIn our bank: Strong match · 83%
Which of the following statements are correct? (a) Energy flow from producers to consumers is unidirectional; (b) Energy pyramid can never be inverted; (c) Transfer of energy follows the 1% law.
- A.(a), (b) and (c)
- B.(a) and (b) only✓
- C.(a) and (c) only
- D.(b) and (c) only
Correct Answer
(B) (a) and (b) only
Solution & Explanation
Energy flow in an ecosystem is unidirectional (a, correct), and the pyramid of energy is always upright — never inverted, because energy is lost as heat at each trophic level (b, correct). Statement (c) is wrong: energy transfer follows the 10% law, not the 1% law. Hence (a) and (b) only.
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