Which of the following is a slime mould

Options

A. Thiobacillus
B. Anabaena
C. Rhizopus
D. Physarum

Answer

To determine which of the following is a slime mold, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Identify the Options**: The options given are:
- A) Thiobacillus
- B) Anabina
- C) Rhizopus
- D) Physarum

2. **Examine Each Option**:
- **Option A: Thiobacillus**: This is a gram-negative bacterium classified under the group of prokaryotes. Since slime molds are eukaryotic organisms, Thiobacillus cannot be a slime mold.

- **Option B: Anabina**: Anabina is a genus of cyanobacteria, which are also prokaryotic. Therefore, it is not a slime mold.

- **Option C: Rhizopus**: Rhizopus is a genus of fungi. Fungi are distinct from slime molds, which are classified as protists. Thus, Rhizopus is not a slime mold.

- **Option D: Physarum**: Physarum is a well-known genus of slime molds. It is characterized by its multicellular reproductive structures, which are a defining feature of slime molds.

3. **Conclusion**: Based on the analysis, the only organism that qualifies as a slime mold from the options provided is **Physarum**.

### Final Answer:
**The correct answer is D) Physarum.**

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