What type of respiratory structures are present in earthworm?

Explanation

**Step-by-Step Solution:**

1. **Introduction to Earthworm:**
- Earthworms are segmented, slimy creatures found in soil. They play a crucial role in maintaining soil fertility by consuming organic matter.

2. **Respiratory Structures in Earthworm:**
- Unlike many other organisms, earthworms do not possess specialized respiratory organs like lungs or gills. Instead, they respire through their skin.

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