Seed habit first established in

Options

A. Pteridophytes
B. Gymnosperms
C. Angiosperms
D. None of the above

Answer

**Step-by-Step Solution:**

1. **Understand the Question**: The question asks when the seed habit was first established among the groups of plants: teridophytes, gymnosperms, angiosperms, or none of these.

2. **Define Seed Habit**: Seed habit refers to the reproductive strategy where seeds are produced as a result of fertilization, allowing for the protection and nourishment of the developing embryo.

3. **Identify Plant Groups**:
- **Teridophytes**: These are seedless vascular plants, such as ferns, that reproduce via spores.
- **Gymnosperms**: These are seed-producing plants that have seeds exposed on cones or other structures, such as pines and firs.
- **Angiosperms**: These are flowering plants that produce seeds enclosed within a fruit.

4. **Analyze the Development of Seed Habit**:
- The development of the seed habit is a significant evolutionary advancement that allows plants to reproduce without the need for water, unlike their predecessors.
- Gymnosperms are the first group to exhibit the seed habit, as they produce seeds directly on the surface of cones.

5. **Conclusion**: Based on the information, the seed habit was first established in gymnosperms.

6. **Final Answer**: Therefore, the correct answer is **Gymnosperm**.

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