What is meant by osmoregulation?

Explanation

### Step-by-Step Solution:

1. **Definition of Osmoregulation**: Osmoregulation refers to the process by which living organisms maintain the balance of water and salts (osmotic pressure) in their bodies. This is crucial for their survival as it helps regulate the internal environment despite changes in the external environment.

2. **Importance of Osmoregulation**: Maintaining osmotic pressure is essential for cellular functions. If the balance of water and salts is disrupted, it can lead to cellular dysfunction and ultimately affect the organism's health.

3. **Osmoregulation in Different Environments**:
- **Marine Organisms**: Organisms that live in saltwater environments (marine habitats) have adaptations that allow them to tolerate high salt concentrations. They can absorb or resist salt effectively to maintain their internal balance.
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