The beak in birds is toothed in

Options

A. Ostrich
B. Kiwi
C. Pelican
D. Archaeopteryx

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks which bird has a toothed beak. We need to analyze the options provided: ostrich, kiwi, pelican, and Archaeopteryx.

2. **Analyzing Modern Birds**: First, we look at the first three options: ostrich, kiwi, and pelican. These are all modern birds. It is important to note that modern birds typically do not have teeth; instead, they have beaks that are adapted for their feeding habits.

3. **Examining Each Modern Bird**:
- **Ostrich**: This large flightless bird has a beak but no teeth.
- **Kiwi**: This flightless bird from New Zealand also has a beak without teeth.
- **Pelican**: Known for its large bill, the pelican also lacks teeth.

4. **Identifying the Extinct Bird**: The last option is Archaeopteryx, which is an extinct species. It is significant because it is considered a transitional form between reptiles and birds.

5. **Characteristics of Archaeopteryx**: Archaeopteryx had features of both birds and reptiles. It possessed a beak but also had teeth, which is a characteristic feature of reptiles. This makes it unique compared to the other options.

6. **Conclusion**: Since the question specifically asks for a bird with a toothed beak, the correct answer is Archaeopteryx, as it is the only one among the options that fits this description.

**Final Answer**: The beak in birds is toothed in **Archaeopteryx** (Option D).

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