The rate of formation of new organic matter by rabbit in a grassland is called

Options

A. net primary productivity
B. Gross primary productivity
C. Net productivity
D. Secondary productivity

Answer

To solve the question regarding the rate of formation of new organic matter by rabbits in a grassland, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Role of Rabbits in the Ecosystem**:
- Rabbits are herbivores, meaning they consume plants (primary producers) for energy and nutrients.

2. **Identify the Type of Productivity**:
- In ecological terms, productivity can be classified into primary and secondary productivity.
- Primary productivity refers to the rate at which primary producers (like plants) create organic matter through photosynthesis.

3. **Define Secondary Productivity**:
- Secondary productivity refers to the generation of new organic matter by consumers (herbivores and carnivores) that eat the primary producers.
- In this case, the rabbit, as a consumer, converts the energy and organic matter obtained from plants into its own biomass.

4. **Conclusion**:
- Therefore, the rate of formation of new organic matter by the rabbit in a grassland is known as **secondary productivity**.

### Final Answer:
The rate of formation of new organic matter by rabbit in a grassland is called **secondary productivity**.

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