The skull of frog is

Options

A. Non-condylic
B. Diconidylic
C. Monocondylic
D. None of these

Answer

### Step-by-Step Solution:

1. **Understanding the Structure of the Frog's Skull**:
- The skull of the frog is an important structure that connects to the body. It is essential to understand how it articulates with the vertebral column.

2. **Articulation with the Body**:
- The frog's skull is attached to its body via two structures known as articulatory condyles. These condyles allow the skull to pivot and move, which is crucial for the frog's mobility.

3. **Identifying Key Features**:
- Beneath the foramen magnum (the large hole at the base of the skull through which the spinal cord passes), there are two occipital condyles. These are rounded knobs that help in the articulation of the skull with the vertebral column.

4. **Defining the Foramen Magnum**:
- The foramen magnum is a significant anatomical feature as it is the opening in the skull that connects the brain to the spinal cord.

5. **Classification of the Skull**:
- The skull of the frog is classified as dicondylic, meaning it has two condyles (the occipital condyles) that articulate with the vertebrae. This is in contrast to other types of skulls, such as monocondylic (one condyle) or non-condylic (no condyles).

6. **Evaluating Options**:
- Given the options provided:
- Non-condylic: Incorrect, as the frog has two occipital condyles.
- Diacondylic: Correct, as it has two condyles.
- Monocondylic: Incorrect, as it has two condyles.
- None of these: Incorrect, since the correct classification is diacondylic.

7. **Conclusion**:
- The correct answer to the question "The skull of frog is" is that it is **diacondylic**.