Name the causative organism of the disease Amoebiasis. List three symptoms of the disease.

Explanation

### Step-by-Step Solution:

1. **Identify the Causative Organism**:
- The disease Amoebiasis is caused by a protozoan organism known as *Entamoeba histolytica*. This organism primarily affects the large intestine of humans.

2. **List Three Symptoms of Amoebiasis**:
- **Symptom 1**: Constipation - This is a common symptom where the patient experiences difficulty in passing stools.
- **Symptom 2**: Abdominal Pain - Patients often report pain in the abdominal region, which can vary in intensity.
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