All are archegoniate except-

Options

A. Bryophytes
B. Angiosperms
C. Pteridophytes
D. Gymnosperms

Answer

To solve the question "All are archegoniate except-", we need to identify which of the given plant groups does not possess archegonia, the female reproductive structure in certain plants.

### Step-by-Step Solution:

1. **Understand the term "Archegoniate":**
- Archegoniate plants are those that possess archegonia, which are the female sex organs that produce eggs.

2. **Identify the plant groups provided:**
- The groups mentioned in the question are:
- Bryophytes
- Angiosperms
- Pteridophytes
- Gymnosperms

3. **Analyze each group for the presence of archegonia:**
- **Bryophytes:** These are non-vascular plants (like mosses) that do have archegonia. Thus, they are archegoniate.
- **Angiosperms:** These are flowering plants. They have a different structure for reproduction, namely the pistil, which contains the ovary and ovules. Angiosperms do not have archegonia.
- **Pteridophytes:** These are vascular plants (like ferns) that also possess archegonia. Therefore, they are archegoniate.
- **Gymnosperms:** These are seed-producing plants (like conifers) that have archegonia as well. Hence, they are also archegoniate.

4. **Conclusion:**
- Out of the four groups, only **Angiosperms** do not have archegonia. Therefore, the answer to the question is **Angiosperms**.

### Final Answer:
Angiosperms are the group that is not archegoniate.

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