Common round worm belongs to the class

Options

A. Chromadorea
B. Aphasmidia
C. Turbellaria
D. Trematoda

Answer

To answer the question "Common roundworm belongs to the class," we will follow these steps:

### Step-by-Step Solution:

1. **Identify the Common Roundworm**: The common roundworm referred to in the question is scientifically known as *Ascaris lumbricoides*.

2. **Understand the Habitat**: This worm is primarily found in the small intestine of humans. It is often referred to as the human roundworm due to its prevalence in human hosts.

3. **Classify the Worm**: To determine the class to which *Ascaris lumbricoides* belongs, we need to look at the options provided:
- Chromadoria
- Fs media
- Turbilaria
- Trematoda

4. **Select the Correct Class**: Among the options, *Ascaris lumbricoides* is classified under the class **Chromadoria**.

5. **Conclusion**: Therefore, the common roundworm belongs to the class **Chromadoria**.

### Final Answer:
The common roundworm (*Ascaris lumbricoides*) belongs to the class **Chromadoria**.

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