Which gas has higher partial pressure in tissues ?

Explanation

To determine which gas has a higher partial pressure in tissues, we need to analyze the partial pressures of oxygen (O₂) and carbon dioxide (CO₂) in the tissues.

### Step-by-Step Solution:

1. **Identify the Gases Involved**:
- The two primary gases involved in the exchange within tissues are oxygen (O₂) and carbon dioxide (CO₂).

2. **Understand Partial Pressure**:
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