Why is Neopilina called a connecting link between Annelida and Mollusca.

Explanation

**Step-by-Step Solution:**

1. **Definition of Connecting Link**: A connecting link is an organism that exhibits characteristics of two different taxonomic groups, demonstrating evolutionary relationships between them.

2. **Introduction to Neopilina**: Neopilina is a genus of marine mollusks that is considered a connecting link between the phyla Annelida and Mollusca.

3. **Annelida Characteristics**: Neopilina possesses certain features typical of Annelids, such as:
- **Nephridia**: These are excretory organs found in Annelids, which help in the removal of waste.
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