Give examples of proteins which help in blood clotting at injury

Explanation

To answer the question about proteins that help in blood clotting during an injury, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Role of Proteins in Blood Clotting**:
- Blood clotting is a complex process that involves various proteins, known as clotting factors, which work together to prevent excessive bleeding when an injury occurs.

2. **Name the Key Protein Involved**:
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