Which structural features help the amphibians to get adapted to both terrestrial and aquatic habitats?

Explanation

### Step-by-Step Solution:

1. **Introduction to Amphibians**:
Amphibians are unique organisms that can thrive in both terrestrial (land) and aquatic (water) environments. This dual capability is facilitated by specific structural features.

2. **External Gills**:
In their aquatic stage, amphibians possess external gills. These gills allow them to absorb oxygen directly from the water, which is essential for their survival in aquatic habitats.

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