Spirulina belongs to kingdom

Options

A. plantae
B. monera
C. protista
D. fungi

Answer

To determine the kingdom to which Spirulina belongs, we can follow these steps:

### Step-by-Step Solution:

1. **Identify Spirulina**: First, we need to recognize what Spirulina is. Spirulina is often described as a type of bacteria that has a spiral shape.

2. **Classify Spirulina**: Spirulina is classified as a cyanobacterium. Cyanobacteria are photosynthetic bacteria that can perform photosynthesis like plants.

3. **Refer to Biological Classification**: In biological classification, organisms are grouped into different kingdoms. The main kingdoms include:
- A. Plantae (plants)
- B. Monera (prokaryotic organisms, including bacteria)
- C. Protista (mostly unicellular eukaryotic organisms)
- D. Fungi (fungi)

4. **Determine the Correct Kingdom**: Since Spirulina is a type of cyanobacteria, it is a prokaryotic organism. Prokaryotic organisms are classified under the kingdom Monera.

5. **Conclusion**: Therefore, the correct answer is that Spirulina belongs to the kingdom Monera.

### Final Answer:
Spirulina belongs to the kingdom **Monera** (Option B).

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