Which one helps in spore dispersal in Moss

Options

A. Columella
B. Operculum
C. Peristome teeth
D. Apophysis.

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks which structure helps in the dispersal of spores in mosses. It's important to identify the correct part of the moss that plays a role in this process.

2. **Identifying the Options**: The options given are:
- A) Columella
- B) Operculum
- C) Peristome
- D) Apophysis

3. **Analyzing Each Option**:
- **Columella**: This is the central sterile part of the sporangium in mosses. It does not participate in spore dispersal. Therefore, this option is incorrect.
- **Operculum**: This is a lid-like structure that covers the sporangium. While it plays a role in releasing spores, it does not actively help in dispersal. Hence, this option is also incorrect.
- **Peristome**: The peristome consists of teeth-like structures that surround the opening of the sporangium. These structures help in the gradual release and dispersal of spores when conditions are favorable. This makes this option the correct answer.
- **Apophysis**: This is a swelling or thickened part of the sporophyte, which does not play a direct role in spore dispersal. Therefore, this option is incorrect.

4. **Conclusion**: After evaluating all the options, the structure that helps in spore dispersal in moss is the **Peristome**.

### Final Answer:
The correct answer is **C) Peristome**.

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