In Funaria, annulus separates

Options

A. Apophysis and theca
B. Theca and Operculum
C. Columella and apophysis
D. Operculum and apophsis.

Answer

### Step-by-Step Solution:

1. **Understanding Funaria**:
- Funaria is a genus of mosses, which are non-vascular plants belonging to the group called bryophytes.

2. **Identifying the Structure**:
- In Funaria, the structure in question is the annulus, which is a ring of specialized cells found in the sporangium.

3. **Function of the Annulus**:
- The annulus is responsible for the release of spores. It plays a crucial role in the reproductive process of mosses.

4. **Identifying the Components**:
- The sporangium has several parts:
- **Operculum**: The cap-like structure at the top.
- **Theca**: The middle section of the sporangium.
- **Apophysis**: The lower part of the sporangium.
- **Columella**: A central column within the sporangium.

5. **Analyzing the Question**:
- The question asks what the annulus separates. Based on the structure of the sporangium, the annulus is located between the operculum and the theca.

6. **Selecting the Correct Option**:
- Given the options:
- Apophysis and theca
- Theca and operculum
- Columella and apophysis
- Operculum and apophysis
- The correct answer is **theca and operculum**, as the annulus separates these two parts.

### Final Answer:
The annulus in Funaria separates the **theca and operculum**.

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