Give some examples of vegetative propagation by roots.

Explanation

### Step-by-Step Solution:

1. **Understanding Vegetative Propagation**:
- Vegetative propagation is a form of asexual reproduction where new plants grow from parts of the parent plant. This can include roots, stems, or leaves.

2. **Focus on Roots**:
- In this context, we are specifically looking at how roots can facilitate vegetative propagation. Both tap roots and adventitious roots can play a role in this process.

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