1
Given below are two statements: In the light of the above statements, choose the most appropriate answer from the options given below:
- Statement I is correct but statement II is incorrect
- Statement I is incorrect but statement II is correct
- Both statement I and statement II are correct
- Both statement I and statement II are incorrect
Answer
(1) Statement I is correct but statement II is incorrect
Solution
Energy of the sun trapped by producers passes to consumers and is lost as heat at every level; it never returns, so the flow of energy is unidirectional. Statement I is correct.
Ecosystems are not exempt from the second law of thermodynamics; they need a constant supply of energy to synthesise molecules and to counter the universal tendency towards increasing disorderliness. Statement II is incorrect.
Answer: (1)
NEET (UG) 2025