Cork is commonly used for sealing bottles. It is produced by

Options

A. dermatogen
B. phellogen
C. xylem
D. vascular cambium

Answer

To solve the question regarding the production of cork, we will analyze the options provided and identify the correct one step by step.

### Step 1: Understand the question
The question asks about the production of cork, which is commonly used for sealing bottles. We need to determine which of the given options is responsible for producing cork.

### Step 2: Analyze the options
The options provided are:
1. Dermatogen
2. Phallogen
3. Xylem
4. Vascular cambium

### Step 3: Define each term
- **Dermatogen**: This is the outermost layer of the plant embryo that gives rise to the epidermis. It does not produce cork.
- **Phallogen**: Also known as cork cambium, this is a lateral meristem that produces cork (the protective outer layer of the plant).
- **Xylem**: This is a type of vascular tissue responsible for the transport of water and minerals. It does not produce cork.
- **Vascular cambium**: This is a type of lateral meristem that produces secondary xylem (wood) and phloem (the tissue responsible for transporting nutrients). It does not produce cork.

### Step 4: Identify the correct option
From the definitions, we can see that:
- **Phallogen** is the only option that specifically refers to the cork cambium, which is responsible for producing cork.

### Conclusion
The correct answer to the question "Cork is commonly used for sealing bottles. It is produced by" is **Phallogen**.

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