Which of the following helps in anchorage and defence in Paramecium ?

Options

A. Nematocyst
B. Oocyst
C. Trichocyst
D. Statocyst

Answer

To answer the question "Which of the following helps in anchorage and defense in Paramecium?", we will analyze the options provided and determine which one is correct.

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for the structure that aids in both anchorage and defense in Paramecium, a unicellular organism.

2. **Evaluating the Options**:
- **Option 1: Nematocyst**: This is a specialized cell found in jellyfish and sea anemones, used for defense. Since Paramecium is not related to these organisms, this option is incorrect.

- **Option 2: Oocyst**: This is a thick-walled stage in the life cycle of certain parasites, such as those in the genus Coccidia. It does not relate to Paramecium, making this option incorrect as well.

- **Option 3: Trichocyst**: Trichocysts are organelles found in certain protists, including Paramecium. They serve both defensive functions and help in anchorage during feeding by anchoring the organism to surfaces or capturing prey. Therefore, this option is likely correct.

- **Option 4: Statocyst**: This is a sensory organ found in aquatic invertebrates, used for balance and orientation. It does not serve the functions of anchorage or defense in Paramecium, thus this option is also incorrect.

3. **Conclusion**: After evaluating all options, we find that **Trichocyst** is the correct answer as it helps in both anchorage and defense in Paramecium.

### Final Answer:
**Trichocyst** helps in anchorage and defense in Paramecium.

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