Primitive bacteria living in salty areas are called :

Options

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

Answer

To solve the question "Primitive bacteria living in salty areas are called:", we can follow these steps:

### Step 1: Understand the Question
The question is asking for a specific type of primitive bacteria that thrive in salty environments.

### Step 2: Analyze the Options
We have four options to consider:
1. Methanogens
2. Thermoacidophils
3. Heliophytes
4. Halophiles

### Step 3: Evaluate Each Option
- **Option 1: Methanogens** - These are microorganisms that produce methane as a by-product of their metabolism. They are not specifically associated with salty environments.

- **Option 2: Thermoacidophils** - These microorganisms thrive in conditions of high temperature and low pH. They are not related to salty environments either.

- **Option 3: Heliophytes** - This term refers to organisms that grow in high light intensity. They do not pertain to salt tolerance.

- **Option 4: Halophiles** - This is the correct option. Halophiles are microorganisms that thrive in high salt concentrations and are indeed primitive bacteria adapted to salty environments.

### Step 4: Conclusion
Based on the analysis, the correct answer to the question is **Halophiles**.

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