Name the types of respiration which occur in frogs.

Explanation

### Step-by-Step Solution:

1. **Understanding the Frog's Habitat**: Frogs are amphibians, meaning they can live both on land and in water. This dual habitat influences their respiration methods.

2. **Types of Oxygen Utilization**: When frogs are on land, they utilize free oxygen from the air. In contrast, when they are in water, they utilize dissolved oxygen.

3. **Identifying the Types of Respiration**: Adult frogs have three primary types of respiration:
- **Cutaneous Respiration**: This type occurs through the skin. The frog's skin is thin, moist, and has a rich blood supply, making it an effective surface for gas exchange. During hibernation, cutaneous respiration is the only method used.
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