Feathers of birds are modified :-

Options

A. Epidermal scales
B. Bony scales
C. Plates
D. Scutes

Answer

**Step-by-Step Solution:**

1. **Understanding Feathers**: Begin by recognizing that feathers are unique structures found in birds. They play crucial roles in various functions such as flight, insulation, and display.

2. **Identifying the Nature of Feathers**: Feathers are derived from the epidermis, which is the outermost layer of skin in birds. This indicates that they are modified structures.

3. **Evaluating the Options**:
- **Option 1: Epidermal Scales**: This option is correct. Feathers are indeed modified epidermal structures. They provide insulation, waterproofing, and coloration, which are essential for flight and communication.
- **Option 2: Bony Scales**: This option is incorrect. Bony scales are found in fish and reptiles, not in birds.
- **Option 3: Plates**: This option is also incorrect. Plates are not a characteristic feature of bird anatomy related to feathers.
- **Option 4: Scoots**: This option is incorrect as well. Scoots are found in some reptiles and are not related to the structure of feathers in birds.

4. **Conclusion**: The correct answer is that feathers of birds are modified epidermal scales.

**Final Answer**: Feathers of birds are modified epidermal scales.

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