The primitive prokaryotes responsibel for the production of biogas from the dung of ruminant animals include

Options

A. Thermoacidophiles
B. Methanogens
C. Eubacteria
D. Halophiles

Answer

To answer the question regarding the primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for the specific type of primitive prokaryotes that are involved in the production of biogas from ruminant animal dung.

2. **Identify the Options**: The options provided are:
- Thermoacetophils
- Methanogens
- Eubacteria
- Halophiles

3. **Analyze Each Option**:
- **Thermoacetophils**: These are archaebacteria that thrive in high temperatures and acidic environments. They are not primarily involved in biogas production.
- **Methanogens**: These are a group of archaebacteria that produce methane as a metabolic byproduct in anaerobic conditions. They are specifically known for their role in breaking down organic matter, including cow dung, to produce biogas.
- **Eubacteria**: This term refers to true bacteria, which are diverse but not specifically known for biogas production from ruminant dung.
- **Halophiles**: These are bacteria that thrive in high-salinity environments. They do not play a role in biogas production.

4. **Determine the Correct Answer**: Based on the analysis, methanogens are the prokaryotes responsible for the production of biogas from the dung of ruminant animals. Therefore, the correct answer is **Methanogens**.

5. **Final Conclusion**: The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals include **Methanogens**.