Skull of Rabbit `//` Man is `:-`

Options

A. Monocondylic
B. Dicondylic
C. Tricondylic
D. Tetracondylic.

Answer

To answer the question regarding the skull of a rabbit and a man, we need to analyze the structure of their skulls in relation to the number of condyles present.

### Step-by-Step Solution:

1. **Understanding Condyles**:
- Condyles are rounded prominences at the ends of bones that articulate with other bones. In the context of the skull, they are found on the occipital bone, which is located at the posterior part of the skull.

2. **Types of Condylic Structures**:
- The question presents four options: monocondylic, dicondylic, tricondylic, and tetracondylic.
- Monocondylic means having one condyle (e.g., some birds and amphibians).
- Tricondylic refers to three condyles, which is not found in any known organism.
- Tetracondylic means having four condyles, which is also not applicable to mammals.

3. **Analyzing the Skull of Rabbit and Man**:
- Both the rabbit and the man have two condyles on their occipital bones. These condyles articulate with the first cervical vertebra (the atlas), allowing for the nodding motion of the head.

4. **Conclusion**:
- Since both the rabbit and the man have two condyles, they are classified as dicondylic. Therefore, the correct answer to the question is "dicondylic."

### Final Answer:
The skull of both the rabbit and the man is dicondylic, meaning they have two condyles.

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