The primitive prokaryotes responsible for the prouduction of biogas from the dung of ruminant animals include the

Options

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

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. **Identify the Types of Prokaryotes**: Understand that prokaryotes are divided into various groups, including halophiles, thermophiles, methanogens, and eubacteria.

2. **Understand the Environment of Each Group**:
- **Halophiles**: These are organisms that thrive in high-salinity environments, such as salt lakes.
- **Thermophiles**: These organisms live in extremely hot environments, like hot springs.
- **Methanogens**: These are a specific group of archaea that produce methane and are typically found in anaerobic environments, such as the guts of ruminant animals.
- **Eubacteria**: This group includes a wide variety of bacteria that can be found in many environments.

3. **Focus on the Relevant Group**: Since the question specifically asks about the production of biogas from the dung of ruminant animals, we need to focus on the group that is involved in methane production.

4. **Identify the Correct Answer**: Among the groups mentioned, methanogens are the prokaryotes that are primarily responsible for the production of biogas (which mainly consists of methane) in the digestive systems of ruminant animals.

5. **Conclusion**: Therefore, the primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals are **methanogens**.

### Final Answer:
The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals include **methanogens**.

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