A fowl consumes grains . What will we call the rate at which new organic matter is produced by this fowl ?

Options

A. Primary productivity Rate
B. Gross Primary productivity
C. Net primary productivity
D. Secondary productivity

Answer

To solve the question, "A fowl consumes grains. What will we call the rate at which new organic matter is produced by this fowl?" we need to understand a few key concepts related to ecology and biology.

### Step-by-Step Solution:

1. **Understanding the Process**: When a fowl consumes grains, it is engaging in a process of obtaining energy and nutrients from its food. The grains are organic matter, and when the fowl metabolizes this food, it converts it into new organic matter (like tissues, feathers, etc.).

2. **Defining the Term**: The rate at which new organic matter is produced by an organism is known as **productivity**. In the context of animals, this is often referred to as **secondary productivity**.

3. **Secondary Productivity**: Secondary productivity is the generation of biomass by heterotrophic organisms (like the fowl) through the consumption of organic matter. It reflects how efficiently the fowl converts the energy from the consumed grains into its own body mass.

4. **Conclusion**: Therefore, the rate at which new organic matter is produced by the fowl as it consumes grains can be termed as **secondary productivity**.

### Final Answer:
The rate at which new organic matter is produced by the fowl is called **secondary productivity**.

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