Compare the functioning of alveoli in the lungs and nephrons in the kidney with respect to their structure and functioning.

Explanation

### Step-by-Step Solution

1. **Introduction to Alveoli and Nephrons**:
- Alveoli are tiny, balloon-like structures located in the lungs.
- Nephrons are tubular structures found in the kidneys.

2. **Structure**:
- **Alveoli**:
...