Explain why liverworts lie close to the ground.

Explanation

### Step-by-Step Solution:

1. **Introduction to Liverworts**:
- Liverworts are small, non-vascular plants that belong to the group of bryophytes. They are also known as liver plants.

2. **Absence of Roots**:
- One of the primary reasons liverworts lie close to the ground is that they do not have true roots. Instead, they have structures called rhizoids, which help anchor them to the substrate but do not absorb water and nutrients like roots do.

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