Which features of the earthworm enable it to move on the ground.

Explanation

### Step-by-Step Solution:

1. **Body Structure**: Earthworms are invertebrates, meaning they do not have a backbone. Their bodies are segmented, which is a key feature that aids in movement.

2. **Segments**: The body of an earthworm is divided into many segments. Each segment can move independently, allowing for flexibility and coordinated movement.

3. **Bristles (Setae)**: On the underside of each segment, there are tiny bristles known as setae. These bristles play a crucial role in locomotion.

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