The main plant body of Selaginella sp. Is

Options

A. Sporophyte
B. Gametophyte
C. Halophyte
D. Both B and C.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the main plant body of Selaginella species. We need to identify whether it is a sporophyte, gametophyte, halophyte, or both B and C.

2. **Defining Sporophyte and Gametophyte**:
- The sporophyte is the diploid phase of the plant life cycle, which means it has two sets of chromosomes (one from each parent).
- The gametophyte is the haploid phase, meaning it has only one set of chromosomes.

3. **Life Cycle of Selaginella**:
- In Selaginella, there is an alternation of generations, which means it goes through both sporophyte and gametophyte phases.
- However, in Selaginella, the sporophyte phase is dominant, while the gametophyte phase is reduced and less prominent.

4. **Identifying the Main Plant Body**:
- Since the question asks for the main plant body, we focus on the dominant phase, which is the sporophyte.
- Therefore, the main plant body of Selaginella is the sporophyte.

5. **Evaluating Other Options**:
- Halophytes are plants that can tolerate high salinity. Selaginella does not fall into this category, so it is not a halophyte.
- Since the gametophyte is not the main plant body in Selaginella, options B (gametophyte) and C (halophyte) are also incorrect.

6. **Conclusion**: The correct answer is that the main plant body of Selaginella is the sporophyte.

**Final Answer**: The main plant body of Selaginella sp. is the sporophyte.

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