E.histolytica does not show

Options

A. Binary fission
B. Budding
C. Encystation
D. Excystation

Explanation

### Step-by-Step Solution:

1. **Understanding E. histolytica**: E. histolytica, or Entamoeba histolytica, is a protozoan parasite known to cause amoebic dysentery in humans.

2. **Reproductive Methods**: E. histolytica primarily reproduces asexually through binary fission. This means that the organism divides into two identical daughter cells.

3. **Binary Fission**: In binary fission, the nucleus of E. histolytica divides first, followed by the division of the cytoplasm, resulting in two separate organisms.

4. **Budding**: Budding is another form of asexual reproduction where a new organism develops from an outgrowth or bud on the parent organism. E. histolytica does not reproduce through budding.

5. **Encystation**: E. histolytica can undergo a process called encystation, where it forms a protective cyst around itself. This occurs in response to unfavorable environmental conditions, allowing the organism to survive outside the host.

6. **Excystation**: When the cyst reaches a suitable environment (like the human intestine), it undergoes excystation, where the cyst breaks open, and the active form of the parasite is released.

7. **Conclusion**: Therefore, E. histolytica does not show budding. It reproduces through binary fission and can undergo encystation and excystation.

### Final Answer:
E. histolytica does not show budding.

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