Which is correct

Options

A. Pteridophyte gametophyte has a protonemal and leafy stage
B. In gymnosperms, female gametophyte is free living
C. Antheridiophores and archegoniophores are present in pteridophytes
D. Origin of seed habit can be traced in pteridophytes.

Answer

To determine which statement is correct regarding the options provided, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Analyze Option A:**
- **Statement:** "Pteridophyte gametophyte has a protoemal and leafy stage."
- **Explanation:** In pteridophytes, the gametophyte stage is indeed characterized by a protonemal stage and a leafy stage. However, this description is more typical of bryophytes rather than pteridophytes. Therefore, this statement is **incorrect**.

2. **Analyze Option B:**
- **Statement:** "In gymnosperm, female gametophyte is free living."
- **Explanation:** In gymnosperms, the female gametophyte is not free-living; it develops within the ovule and is dependent on the sporophyte for nutrition. Hence, this statement is also **incorrect**.

3. **Analyze Option C:**
- **Statement:** "Enthrediophores and Archegoniophores are present in pteridophytes."
- **Explanation:** The terms "antheridiophores" and "archegoniophores" refer to structures found in bryophytes, particularly in liverworts, not in pteridophytes. Pteridophytes have different reproductive structures. Thus, this statement is **incorrect**.

4. **Analyze Option D:**
- **Statement:** "Origin of seed habits can be traced in pteridophytes."
- **Explanation:** The origin of seed habits, which includes the development of heterospory and the retention of the megaspore, is indeed a feature that can be traced back to pteridophytes. This statement is **correct**.

### Conclusion:
After analyzing all the options, the correct statement is:
- **Option D:** "Origin of seed habits can be traced in pteridophytes."

### Final Answer:
The correct answer is **Option D**.

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