Which group of plant kingdom is known to reproduce by spores?

Explanation

### Step-by-Step Text Solution:

1. **Identify the Question**: The question asks which group of the plant kingdom reproduces by spores.

2. **Understand Plant Groups**: In the plant kingdom, there are several groups, including bryophytes, pteridophytes, gymnosperms, and angiosperms. Each group has different reproductive methods.

3. **Focus on Spores**: Spores are a form of asexual reproduction commonly found in certain groups of plants. They are typically produced in structures called sporangia.

...