Respiration in Dugesia is

Options

A. Aerobic
B. Anaerobic
C. Both
D. None of the above

Answer

### Step-by-Step Solution:

1. **Identify the Organism**: The question asks about respiration in Dugesia, which is a genus of flatworms commonly known as planaria.

2. **Classify the Organism**: Dugesia belongs to the class Turbellaria, which includes free-living flatworms. This is important because the mode of respiration can vary between free-living and parasitic flatworms.

3. **Understand the Habitat**: Dugesia is found in freshwater environments, such as slow-moving streams and ponds. This habitat influences its respiratory process.

4. **Determine the Type of Respiration**:
- Free-living flatworms like Dugesia primarily use **aerobic respiration**. This means they require oxygen to produce energy.
- In contrast, many parasitic flatworms (like tapeworms and liver flukes) often rely on **anaerobic respiration** due to their environments, which may have low oxygen levels.

5. **Conclude the Answer**: Based on the information gathered, the type of respiration in Dugesia is **aerobic respiration**.

### Final Answer:
Respiration in Dugesia is aerobic respiration.

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