The beak in birds is toothed in

Options

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

Answer

To determine which bird has a toothed beak, we need to analyze the options provided: Ostrich, Kiwi, Archaeopteryx, and Pelican.

### Step-by-Step Solution:

1. **Understanding Bird Evolution**:
- Birds are believed to have evolved from reptiles. This evolutionary link is crucial in identifying characteristics that may be retained from their ancestors.

2. **Identifying the Options**:
- **Ostrich**: A large flightless bird with a beak that does not have teeth.
- **Kiwi**: A flightless bird native to New Zealand, also lacking teeth in its beak.
- **Archaeopteryx**: An extinct bird that lived during the Jurassic period. It is known to have features of both birds and reptiles.
- **Pelican**: A bird known for its large bill but does not have teeth.

3. **Analyzing Archaeopteryx**:
- Archaeopteryx is significant because it is considered a transitional species between reptiles and modern birds. It possessed solid bones and a beak that had teeth, which is a characteristic of reptiles.

4. **Conclusion**:
- Among the options, only Archaeopteryx is known to have a toothed beak, making it the correct answer.

### Final Answer:
The beak in birds is toothed in **C. Archaeopteryx**.

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