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ZoologyNEET 2025Energy flow, ecological pyramids

Ecosystem

Given below are two statements:

Statement I: In an ecosystem, there is a unidirectional flow of the energy of the sun from producers to consumers.

Statement II: Ecosystems are exempted from the 2nd law of thermodynamics.

In the light of the above statements, choose the most appropriate answer from the options given below:

  1. A.Both Statement I and Statement II are correct
  2. B.Both Statement I and Statement II are incorrect
  3. C.Statement I is correct but Statement II is incorrect
  4. D.Statement I is incorrect but Statement II is correct

Solution

Energy from the sun flows one way through an ecosystem, from producers to consumers (I correct). Ecosystems obey the laws of thermodynamics; energy is lost as heat at every transfer, which is the second law at work (II incorrect).

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