Home Biology Ecosystem Structure and Function, Productivity and Decomposition Which of the following is expected to have t…
Biology Ecosystem Structure and Function, Productivity and Decomposition Single Correct MCQ
Published on: August 13, 2026

Which of the following is expected to have the highest value (gm/m 2 /yr) in a grassland ecosystem :-

A
Tertiary production
B
Gross production (GP)
C
Net production (NP)
D
Secondary production

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Text Solution

Verified by Experts
The correct answer is:
B

• Gross Production (GP) represents the total energy captured by plants through photosynthesis before any losses.

•Net Production (NP) is always lower because it is the energy remaining after plants use some for their own respiration (NP=GP=R)

•Secondary and Tertiary Productions are significantly smaller values, as only about 10% of energy is transferred between successive trophic levels in an ecosystem.

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