Discuss the nature of skin in the amphibians and repties.

Explanation

### Step-by-Step Solution:

1. **Introduction to Amphibians and Reptiles**:
- Amphibians belong to the class Amphibia, while reptiles belong to the class Reptilia. Both classes have distinct characteristics, especially concerning their skin.

2. **Skin Characteristics of Amphibians**:
- Amphibians typically have moist skin. This moisture is crucial for their survival as it aids in respiration.
- They can perform cutaneous respiration, meaning they can absorb oxygen through their skin. This is vital since many amphibians do not have gills in their adult form.
...