Reptilian feature of Archaeopteryx `:`

Options

A. U-shaped furcula
B. Beak
C. Abdominal ribs
D. Feathers

Answer

To answer the question regarding the reptilian features of Archaeopteryx, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Archaeopteryx**: Archaeopteryx is considered a transitional fossil that exhibits characteristics of both reptiles and birds. It is often referred to as a "connecting link" between these two groups.

2. **Identify Reptilian Features**: To determine which of the given options represents a reptilian feature, we need to analyze each option:
- **U-shaped farcula**: This is a feature associated with birds, specifically related to their flight mechanics.
- **Beak**: Beaks are characteristic of birds, not reptiles.
- **Abdominal ribs**: These are bony structures that are found in some reptiles and can be considered a reptilian feature.
- **Feathers**: Feathers are a defining characteristic of birds, not reptiles.

3. **Select the Correct Answer**: Among the options provided, the only feature that aligns with reptilian characteristics is the **abdominal ribs**. This feature indicates a connection to reptiles, as they possess similar structures.

4. **Conclusion**: Therefore, the correct answer to the question about the reptilian feature of Archaeopteryx is **abdominal ribs**.

### Final Answer:
**Abdominal ribs**

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