NEET UG 2025 · Botany · Question 170
NEET 2025 Botany, question 170
Question 170 of the NEET 2025 paper (code 45) is a Botany question from Ecosystem. Its idea, Second Law of Thermodynamics in Ecosystems, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 3.
Updated 2026-10-08
Q170 · Botany
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 light of the above statements, choose the most appropriate answer from the options given below:
- 1Both statement I and statement II are correct
- 2Both statement I and statement II are incorrect
- 3Statement I is correct but statement II is incorrectOfficial answer
- 4Statement I is incorrect but statement II is correct
Official answer: option 3 · NTA final answer key
Same idea
The only question on Second Law of Thermodynamics in Ecosystems
No other NEET paper from 2017–2026 tested this exact idea.
Second Law of Thermodynamics in Ecosystems: every question and how it was framed
The chapter
Ecosystem in ten years of NEET
20 questions from 2017–2026, asked in 10 of 10 papers, about 1.9 a paper. Energy Flow in Ecosystem alone had 15.