The fungus growing frequently on stale bread is known as

Options

A. Rhizopus stolonifer
B. Penicillium notatum
C. Agaricus campestris
D. Aspergillus fumgatus

Answer

**Step-by-Step Solution:**

1. **Identify the Context**: The question asks for the name of the fungus that commonly grows on stale bread. This is a common observation, as bread often develops mold when exposed to moisture and air.

2. **Recognize Common Fungi**: There are several types of fungi that can grow on bread, but the most frequently observed one is typically a type of mold.

3. **Review the Options**: The options provided are:
- A) Rhizopus stolonifer
- B) Penicillium notatum
- C) Agaricus campestris
- D) Aspergillus fumigatus

4. **Analyze Each Option**:
- **Rhizopus stolonifer**: Known as black bread mold, commonly found on stale bread.
- **Penicillium notatum**: Known for producing penicillin, also can grow on bread but is less common.
- **Agaricus campestris**: This is the common mushroom, not typically found on bread.
- **Aspergillus fumigatus**: This is a pathogenic fungus, not commonly associated with bread.

5. **Select the Correct Answer**: Based on the analysis, the fungus that grows frequently on stale bread is **Rhizopus stolonifer**.

6. **Conclude the Answer**: Therefore, the final answer is **Option A: Rhizopus stolonifer**.

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