What is correct about breathing in adult Frog

Options

A. In water - skin, gills
B. In water - skin, buccal cavity
C. On land - skin, lungs, gills
D. On land - skin, buccal cavity

Answer

### Step-by-Step Solution:

1. **Understanding Frog Respiration**: Frogs are amphibians, which means they can live both in water and on land. Their breathing mechanisms differ based on their environment.

2. **Breathing in Water**: When frogs are in water, they primarily use their skin for respiration. This process is known as cutaneous respiration. Frogs have permeable skin that allows for the exchange of gases (oxygen and carbon dioxide) directly with the water.

3. **Breathing on Land**: On land, frogs utilize multiple methods for respiration. They breathe through their skin (cutaneous respiration), their lungs (pulmonary respiration), and their buccal cavity (the cavity of the mouth). The lungs are more effective for gas exchange in air, while the buccal cavity helps in pushing air into the lungs.

4. **Analyzing the Options**:
- **Option 1**: "In water, skin gills" - Incorrect, as adult frogs do not have gills.
- **Option 2**: "In water, skin buccal cavity" - Incorrect, as the buccal cavity is not used for respiration in water.
- **Option 3**: "On land, skin, lungs, gills" - Incorrect, as adult frogs do not use gills on land.
- **Option 4**: "On land, skin, buccal cavity" - Correct, as adult frogs breathe using their skin and buccal cavity on land.

5. **Conclusion**: The correct statement about breathing in adult frogs is that on land, they breathe through their skin and buccal cavity.