Frog has 10 pairs and man has 12 pairs of cranial nerves.

Answer

### Step-by-Step Solution:

1. **Understanding Cranial Nerves**:
- Cranial nerves are a set of nerves that emerge directly from the brain and brainstem, as opposed to spinal nerves, which emerge from segments of the spinal cord. They are responsible for transmitting sensory and motor information between the brain and various parts of the body.

2. **Cranial Nerves in Frogs**:
- Frogs have 10 pairs of cranial nerves. These include:
- Olfactory Nerves: Responsible for the sense of smell.
- Optic Nerves: Responsible for vision.
- Oculomotor Nerves: Control eye movements.
- Trochlear Nerves: Also involved in eye movement.
- Trigeminal Nerves: Responsible for sensation in the face and motor functions such as biting and chewing.
- Abducens Nerves: Control lateral eye movement.
- Facial Nerves: Control facial expressions and convey taste sensations.
- Auditory Nerves: Responsible for hearing.
- Glossopharyngeal Nerves: Involved in taste and swallowing.
- Vagus Nerves: Control functions of the heart, lungs, and digestive tract.

3. **Cranial Nerves in Humans**:
- Humans have 12 pairs of cranial nerves. In addition to the 10 pairs found in frogs, humans have:
- Accessory Nerves: Involved in neck and shoulder movement.
- Hypoglossal Nerves: Control tongue movements.

4. **Comparison**:
- The difference in the number of cranial nerves between frogs and humans is due to the additional functions and complexities in human anatomy. The accessory and hypoglossal nerves provide humans with capabilities that are not present in frogs, such as enhanced motor control and coordination.

5. **Conclusion**:
- Therefore, the statement that "Frog has 10 pairs and man has 12 pairs of cranial nerves" is true. This highlights the evolutionary differences and adaptations between the two species.