Which plant group is exclusively perennial ?

Options

A. Dicots
B. Ferns
C. Gymnosperms
D. Monocots

Answer

**Step-by-Step Solution:**

1. **Understanding Perennial Plants**: Perennial plants are those that live for more than two years. They can survive through multiple growing seasons, unlike annuals (which complete their life cycle in one year) or biennials (which complete their life cycle in two years).

2. **Identifying Plant Groups**: The question provides several plant groups to consider: dicots, ferns, gymnosperms, and monocots.

3. **Analyzing Each Group**:
- **Dicots**: This group includes many plants, some of which are annual or biennial. Therefore, they are not exclusively perennial.
- **Ferns**: While many ferns can be perennial, they also include species that may not be. Thus, they are not exclusively perennial.
- **Gymnosperms**: This group is characterized by having naked seeds and includes trees like pines and spruces. Most gymnosperms are indeed perennial and can live for hundreds to thousands of years.
- **Monocots**: Similar to dicots, monocots include a variety of plants, many of which are annuals or biennials.

4. **Conclusion**: Based on the analysis, the plant group that is exclusively perennial is **Gymnosperms**.

**Final Answer**: Gymnosperms

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