Which one of the following represents the chemical energy available to herbivores in an ecosystem?
Show Hint
- Net Secondary Productivity
- Gross Primary Productivity
- Net Ecosystem Productivity
- Net Primary Productivity
The Correct Option is A
Solution and Explanation
Net Secondary Productivity (NSP) represents the chemical energy that is available to herbivores (primary consumers) in an ecosystem. It refers to the amount of energy that is transferred from the primary producers (plants) to the herbivores after accounting for energy lost through respiration.
Step 2: Explanation of other options.
(B) Gross Primary Productivity (GPP) refers to the total amount of chemical energy that is captured by primary producers through photosynthesis, not the energy available to herbivores. (C) Net Ecosystem Productivity (NEP) is the balance of energy in the ecosystem after accounting for both primary and secondary productivity. (D) Net Primary Productivity (NPP) is the energy available to herbivores, but it does not include the energy used by the herbivores, only the energy captured by primary producers.
Step 3: Conclusion.
The correct answer is (A) Net Secondary Productivity, as it represents the energy available to herbivores in an ecosystem.
Top Questions on Ecosystems
- Write a four-step aquatic food chain. Among them, which group of organisms is most important and why?
Given below are two statements:
Statement I: The primary source of energy in an ecosystem is solar energy.
Statement II: The rate of production of organic matter during photosynthesis in an ecosystem is called net primary productivity (NPP).
In light of the above statements, choose the most appropriate answer from the options given below:- NEET (UG) - 2025
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Reason (R): Rate of synthesis of organic matter by consumers is known as secondary productivity.
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Eight students (P, Q, R, S, T, U, V, and W) are playing musical chairs. The figure indicates their order of position at the start of the game. They play the game by moving forward in a circle in the clockwise direction.
After the 1st round, the 4th student behind P leaves the game.
After the 2nd round, the 5th student behind Q leaves the game.
After the 3rd round, the 3rd student behind V leaves the game.
After the 4th round, the 4th student behind U leaves the game.
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