Moss plants can develop from

Options

A. Oospores
B. Protonema
C. Antherozoids
D. Diploid spores.

Answer

**Step-by-Step Solution:**

1. **Understanding Moss Reproduction:**
- Mosses belong to the group of plants known as bryophytes. They reproduce both sexually and asexually. The main plant body of mosses is haploid, which means it has one set of chromosomes.

2. **Identifying Structures:**
- The question asks from which structure moss plants can develop. The options include:
- Oospore (zygote)
- Protonema
- Enterozoids (sperms)
- Diploid spores

3. **Analyzing Each Option:**
- **Oospore:** This is the zygote formed after fertilization. It is a diploid structure (sporophyte) and does not directly develop into the haploid gametophyte (the main plant body of moss).
- **Protonema:** This is a filamentous stage that develops from the spore. It is a crucial stage in the life cycle of mosses, where it can give rise to the main plant body through vegetative reproduction.
- **Enterozoids:** These are the sperm cells of mosses. Although they are haploid, they need to fertilize an egg to form a zygote, which again leads to the sporophyte generation.
- **Diploid Spores:** Spores produced by mosses are haploid, not diploid. Therefore, this option is incorrect.

4. **Conclusion:**
- After analyzing all the options, the only structure from which moss plants can develop is the **Protonema**. Thus, the correct answer is option number two.

**Final Answer:**
Moss plants can develop from **Protonema**.

---