Some plants possess modifications like phyllodes, scale leaves, etc. for

Options

A. Differentiation and evolution
B. Decreasing transpiration
C. Increasing transpiration
D. Storage of absorbed water

Answer

### Step-by-Step Solution:

1. **Understanding Plant Modifications**:
- Some plants have modified their leaves into structures like phyllodes and scale leaves. These modifications are adaptations to their environment.

2. **Identifying the Purpose of Modifications**:
- The primary purpose of these modifications is to reduce water loss. Plants in arid or dry environments often develop such adaptations to survive.

3. **Role of Stomata**:
- Stomata are small openings on the leaf surface that allow for gas exchange. Plants with modifications like phyllodes and scale leaves typically have fewer stomata, which helps in minimizing transpiration.

4. **Transpiration Process**:
- Transpiration is the process of water vapor loss from plant surfaces, primarily through stomata. By reducing the number of stomata and the overall surface area of leaves, these plants can effectively decrease the rate of transpiration.

5. **Conclusion**:
- Based on the adaptations of these modified leaves, the correct answer to the question is that these modifications are primarily for **decreasing transpiration**.

### Final Answer:
**b. decrease in transpiration**

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