Removal of bark is generally practiced to kill a tree . The tree actually does not survives after removal of bark because

Options

A. Secondary cortex is also removed
B. Secondary phloem is also removed
C. Phellogen layer is also removed
D. The tissues become exposed and tree dies due to parasitic attacks

Answer

### Step-by-Step Solution:

1. **Understanding Bark**:
- Bark is a term that refers to all the tissues outside the vascular cambium in a plant. It includes several layers such as the phloem, secondary cortex, cork cambium, and cork.

2. **Identifying Components of Bark**:
- The bark consists of:
- **Secondary Phloem**: Responsible for transporting food (sugars) throughout the plant.
- **Secondary Cortex**: Also known as phalloderm, it provides support and storage.
- **Cork Cambium**: Produces cork cells.
- **Cork**: The outer protective layer.

3. **Function of Phloem**:
- The phloem is crucial for the translocation of food. It transports nutrients produced in the leaves to other parts of the plant, including roots and stems.

4. **Effect of Bark Removal**:
- When bark is removed, the secondary phloem is also removed. This disrupts the plant's ability to transport food, leading to starvation of the plant tissues.

5. **Conclusion**:
- The tree does not survive after the removal of bark primarily because the secondary phloem is removed, which is essential for food translocation. Without food, the plant cannot sustain itself and eventually dies.

### Final Answer:
The tree actually does not survive after removal of bark because **secondary phloem is also removed**.

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