Study the diagram given below and answer the questions that follow:
State how part.4. helps in digestion.

Explanation

To answer the question regarding how part 4 (the large intestine) helps in digestion, we can break down the explanation into clear steps:

### Step-by-Step Solution:

1. **Identify Part 4**:
- Part 4 is identified as the large intestine in the digestive system.

2. **Function of the Large Intestine**:
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