Select the INCORRECT match from the following.

Options

A. Primary productivity = amount of organic matter produced per unit area by photosynthesis
B. Productivity = The rate of biomass production
C. Net primary productivity = GPP – R
D. Gross primary productivity = rate of formation of new organic matter by consumers

Answer

To solve the question of selecting the INCORRECT match from the given options, we can follow these steps:

### Step 1: Understand the Definitions
- **Primary Productivity**: This refers to the amount of organic matter (biomass) produced per unit area by photosynthesis over a specific time period.
- **Net Primary Productivity (NPP)**: This is calculated by subtracting the respiration losses from the Gross Primary Productivity (GPP). The formula is:
\[ NPP = GPP - \text{Respiration Loss} \]
- **Gross Primary Productivity (GPP)**: This is the total amount of organic matter produced by photosynthesis before any losses due to respiration.

### Step 2: Analyze Each Option
1. **Primary Productivity**: Correctly defined as the amount of organic matter produced per unit area by photosynthesis.
2. **Net Primary Productivity**: Correctly defined as GPP minus respiration losses.
3. **Gross Primary Productivity**: The definition given in the options states it is the rate of formation of new organic matter by consumers, which is incorrect. This definition actually describes **Secondary Productivity**, not Gross Primary Productivity.

### Step 3: Identify the Incorrect Match
From the analysis, the incorrect match is the one that defines Gross Primary Productivity as the rate of formation of new organic matter by consumers. This is a clear mismatch because GPP refers to the production by producers (plants), not consumers.

### Conclusion
The incorrect match is the one that defines Gross Primary Productivity incorrectly.

### Final Answer
The incorrect match is the definition of Gross Primary Productivity as the rate of formation of new organic matter by consumers.

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