How do pisces and tetrapods differ from each other?

Explanation

### Step-by-Step Solution:

1. **Definition of Pisces and Tetrapods**:
- Pisces refers to fish, which are primarily aquatic animals.
- Tetrapods are four-limbed animals that include amphibians, reptiles, birds, and mammals.

2. **Habitat**:
- Pisces are exclusively found in aquatic environments (water).
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