One of the following does not have parasitic mode of nutrition

Options

A. Trichonympha campanula
B. Trichomomas vaginalis
C. giardia intestinalis
D. Leishmania tropica

Answer

To determine which organism does not have a parasitic mode of nutrition, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Parasitic Nutrition**: Parasitic nutrition involves organisms that derive their nutrients from a host, often harming the host in the process. This means that parasites depend on their hosts for sustenance.

2. **Review the Options**: We need to analyze the given organisms to see which one does not fit the definition of a parasite.

3. **Analyze Trichonympha Campanula**:
- Trichonympha Campanula is an anaerobic symbiote that breaks down cellulose found in wood.
- It makes its own food through this process and does not harm a host organism.
- Therefore, it does not exhibit a parasitic mode of nutrition.

4. **Analyze Trichomonas vaginalis**:
- This organism is a known parasite that infects humans, particularly in the vaginal area, and derives nutrients from the host.
- It clearly fits the definition of a parasite.

5. **Analyze Giardia intestinalis**:
- Giardia intestinalis is another well-known parasite that affects the small intestine in humans and animals.
- It also derives nutrients from its host, confirming its parasitic nature.

6. **Analyze Leishmania tropica**:
- Leishmania tropica is a parasite that affects the skin, liver, and bone marrow of its host.
- It also takes nutrients from the host, thus categorizing it as a parasite.

7. **Conclusion**: After analyzing all the options, it is clear that Trichonympha Campanula is the only organism that does not have a parasitic mode of nutrition.

### Final Answer:
The organism that does not have a parasitic mode of nutrition is **Trichonympha Campanula**.

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