Question bank/NEET UG/Biology
NEET UGBiologyModerateNEET 2025
Given below are two statements:
Statement I: In ecosystem, there is unidirectional flow of energy of sun from producers to consumers.
Statement II: Ecosystems are exempted from 2nd law of thermodynamics.
In the light of the above statements, choose the most appropriate answer from the options given below:
Show answer and solution
Sol. Sun is the only source of energy for all ecosystems on Earth, except for deep sea-hydro-thermal ecosystem.
The energy flow is unidirectional from the sun to producers and then to consumers.
Ecosystems are not exempted from the second law of thermodynamics. They need a constant supply of energy to synthesise the molecules they require to counteract the universal tendency towards increasing disorderliness.
The energy flow is unidirectional from the sun to producers and then to consumers.
Ecosystems are not exempted from the second law of thermodynamics. They need a constant supply of energy to synthesise the molecules they require to counteract the universal tendency towards increasing disorderliness.
Source: geekyrakshit/indian-exam-questions / neet2025-code45
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