In the equation GPP - R = NPP
GPP is Gross Primary Productivity
NPP is Net Primary Productivity
R here is ________.
In the equation GPP - R = NPP
GPP is Gross Primary Productivity
NPP is Net Primary Productivity
R here is ________.
Respiratory quotient
Respiratory loss
Reproductive allocation
Photosynthetically active radiation
The Correct Option is B
Solution and Explanation
The given equation is:
GPP - R = NPP
Where:
- GPP is Gross Primary Productivity, which measures the total amount of energy produced by photosynthesis in an ecosystem.
- NPP is Net Primary Productivity, representing the energy available to consumers after subtracting the energy used by producers for respiration.
- R represents the variable we are defining.
The equation can be rewritten as:
NPP = GPP - R
Solving for R, we find that it represents the energy lost through processes such as metabolism and maintenance in producers, allowing us to conclude that R is:
Respiratory loss
Therefore, the correct option is Respiratory loss.
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Concepts Used:
Ecosystem
An ecosystem is a structural and functional unit of ecology where the living organisms come in to interact with each other and the surrounding environment.
Structure of the Ecosystem:
The structure of an ecosystem is distinguished by the organization of both biotic and abiotic components. This involves the distribution of energy in our environment. It also comprises the climatic conditions prevailing in that particular environment.
There are two main components of the structure of an ecosystem, namely:
- Biotic Components
- Abiotic Components
The biotic and abiotic components are interconnected in an ecosystem. It is an open system where the energy and components can flow through the boundaries.