Give the number, position and function of copulatory Papillae in earthworm.

Explanation

### Step-by-Step Solution

1. **Understanding Copulatory Papillae**:
- Copulatory papillae are specialized structures found in earthworms that play a crucial role during reproduction.

2. **Number of Copulatory Papillae**:
- Earthworms possess a total of **four copulatory papillae**. These are arranged in two pairs.

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