NEET 2025 | Ecosystem Question 3 | Biology

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:

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

NEET 2025

MCQ (Single Correct Answer)

-1

Which of the following is the unit of productivity of an Ecosystem?

$\mathrm{KCal} ~\mathrm{m}^{-3}$

$\left(\mathrm{KCal} ~\mathrm{m}{ }^{-2}\right) \mathrm{yr}^{-1}$

$\mathrm{gm}^{-2}$

$\mathrm{KCal} ~\mathrm{m}^{-2}$

NEET 2024 (Re-Examination)

MCQ (Single Correct Answer)

-1

Consider the pyramid of energy of an ecosystem given below:

NEET 2024 (Re-Examination) Biology - Ecosystem Question 5 English

If T$$_4$$ is equivalent to $$1000 \mathrm{~J}$$, what is the value at $$\mathrm{T}_1$$ ?

$$\frac{10000}{10} \mathrm{~J}$$

$$\frac{10000}{10} \times 4 \mathrm{~J}$$

10,000 J

10,00,000 J

NEET 2024 (Re-Examination)

MCQ (Single Correct Answer)

-1

Which one of the following is not a limitation of ecological pyramids?

Saprophytes are not given any place in ecological pyramids

It assumes a simple food chain, that almost never exists in nature

It accommodates a food web

It does not take into account the same species belonging to two or more trophic levels

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NEET Subjects

Biology

Botany

Zoology

Human Health and Diseases Body Fluids and Its Circulation Locomotion and Movement Neural Control and Coordination Reproduction in Organisms Reproductive Health Structural Organisation in Animals Digestion and Absorption Excretory Products and Their Elimination Chemical Coordination and Integration Human Reproduction Animal Kingdom Breathing and Exchange of Gases Evolution