Question:medium
Given below are two statements:
Statement I: In an ecosystem, there is unidirectional flow of energy of sun from producers to consumers.
Statement II: Ecosystems are exempted from the law of thermodynamics.
Given below are two statements:
Statement I: In an ecosystem, there is unidirectional flow of energy of sun from producers to consumers.
Statement II: Ecosystems are exempted from the law of thermodynamics.
Statement I: In an ecosystem, there is unidirectional flow of energy of sun from producers to consumers.
Statement II: Ecosystems are exempted from the law of thermodynamics.
Show Hint
Energy flows one way. Thermodynamics applies to everything!
Updated On: Mar 19, 2026
- Both Statement I and Statement II are incorrect.
- 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.
Show Solution
The Correct Option is B
Solution and Explanation
Statement I is accurate: Energy transfer within an ecosystem proceeds in a single direction. Its source is the sun, with producers (via photosynthesis) being the initial recipients. This energy then moves through successive trophic levels (consumers). At each stage, energy dissipates as heat, precluding its return to producers in a manner analogous to nutrient cycling.
Statement II is inaccurate: Ecosystems are subject to the laws of thermodynamics. Specifically, the second law dictates that energy conversions are inherently inefficient, with a perpetual loss of energy as heat. This inefficiency underpins the unidirectional movement of energy within ecosystems.
Statement II is inaccurate: Ecosystems are subject to the laws of thermodynamics. Specifically, the second law dictates that energy conversions are inherently inefficient, with a perpetual loss of energy as heat. This inefficiency underpins the unidirectional movement of energy within ecosystems.
Was this answer helpful?
1
Top Questions on Ecology
- Define ecological footprint.
- Match List - I with List II
List I List II A. The Evil Quartet III. Causes of biodiversity losses B. Ex situ conservation I. Cryopreservation C. Lantana camara II. Alien species invasion D. Dodo IV. Extinction - NEET (UG) - 2025
- Biology
- Ecology
- Given below are two statements:
Statement I: Fig fruit is a non-vegetarian fruit as it has enclosed fig wasps in it.
Statement II: Fig wasp and fig tree exhibit a mutual relationship as the fig wasp completes its life cycle in the fig fruit and the fig fruit gets pollinated by the fig wasp.- NEET (UG) - 2025
- Biology
- Ecology
- Match List-I with List-II
\[\begin{array}{|l|l|} \hline \textbf{List-I} & \textbf{List-II} \\ \hline \text{(A). Population size} & \text{(I). It refers to how many individuals reside in a particular area} \\ \hline \text{(B). Population density} & \text{(II). It yields helpful information about how species interact with each other} \\ \hline \text{(C). Population distribution} & \text{(III). It represents the total number of individuals in a habitat} \\ \hline \text{(D). Population dispersion} & \text{(IV). It describes how individuals of a species are spread out, whether they live in close proximity} \\ \hline \text{to each other or far apart, or clustered into groups} \\ \hline \end{array}\]
Choose the correct answer from the options given below:- CUET (PG) - 2025
- Horticulture
- Ecology
- Want to practice more? Try solving extra ecology questions todayView All Questions
