Entamoeba histolytica causes:

Options

A. Pyorrhoea
B. Diarrhoea
C. Dysentery
D. None.

Answer

**Step-by-Step Solution:**

1. **Identify the Organism**: The question asks about Entamoeba histolytica, which is a type of unicellular eukaryote belonging to the kingdom Protista.

2. **Understand the Disease Caused**: Entamoeba histolytica is known to be a parasite that primarily affects the human intestine.

3. **Recognize the Disease**: The specific disease caused by Entamoeba histolytica is amoebic dysentery, also referred to as amoebiasis.

4. **Evaluate the Options**:
- **Option 1: Pairhia** - This is caused by Entamoeba gingivalis, not Entamoeba histolytica.
- **Option 2: Diarrhea** - While diarrhea can be a symptom, it is primarily associated with Giardia, another parasite.
- **Option 3: Dysentery** - This is the correct answer as it directly relates to the disease caused by Entamoeba histolytica.
- **Option 4: None** - This option does not apply as we have identified a specific disease caused by the organism.

5. **Conclusion**: The correct answer to the question is that Entamoeba histolytica causes dysentery (amoebiasis).

**Final Answer**: Dysentery (Amoebiasis).

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