Trophozoite of Entamoeba reproduces by

Options

A. binary fission
B. multiple fission
C. budding
D. all

Answer

**Step-by-Step Solution:**

1. **Understanding the Organism**: The organism in question is Entamoeba histolytica, which is known to cause amoebic dysentery in humans.

2. **Life Cycle Overview**: The life cycle begins when the cyst of Entamoeba histolytica is ingested through contaminated food or water.

3. **Cyst to Trophozoite Transition**: Once inside the human body, the cyst travels through the mouth and esophagus to the stomach, where it undergoes division. From one cyst, multiple trophozoites (the active form) are produced.

4. **Habitat of Trophozoites**: The trophozoites then migrate to the small and large intestines, where they thrive and reproduce.

5. **Reproductive Method**: The primary method of reproduction for trophozoites of Entamoeba histolytica is binary fission. This process involves a single organism dividing into two identical organisms.

6. **Conclusion**: Therefore, the trophozoite of Entamoeba histolytica reproduces by binary fission.

7. **Final Answer**: The correct option is binary fission.

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