The following table shows certain diseases, their causative organisms and symptoms. Fill the gaps.

Explanation

To fill in the gaps in the table regarding certain diseases, their causative organisms, and symptoms, we can follow these steps:

### Step-by-Step Solution:

1. **Ascariasis**
- **Causative Organism**: Ascaris
- **Symptoms**: Abdominal pain, indigestion, nausea, intestinal blockage.

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