Choose the correct statement

Options

A. Bryophytes can live in soil but are dependent on water for sexual reproduction
B. The sex organs in bryophytes are unicellular
C. In bryophytes the main plant body is a gametophyte which is differentiated into true root, stem and leaves
D. Common example of leverwort is Polytrichum

Answer

**Step-by-Step Solution:**

1. **Understanding Bryophytes:**
- Bryophytes are non-vascular plants that include mosses and liverworts. They are often referred to as the amphibians of the plant kingdom because they thrive in both terrestrial and aquatic environments.

2. **Analyzing Option A:**
- The statement claims that bryophytes can live in soil but are dependent on water for sexual reproduction. This is true because bryophytes require water for the sperm to swim to the egg for fertilization. Thus, this statement is correct.

3. **Analyzing Option B:**
- This option states that the sex organs in bryophytes are unicellular. This is incorrect because the sex organs, known as archegonia (female) and antheridia (male), are multicellular structures.

4. **Analyzing Option C:**
- The statement claims that in bryophytes, the main plant body is a gametophyte. This is incorrect. In bryophytes, the dominant stage is indeed the gametophyte, but the sporophyte is the structure that grows from the gametophyte and is dependent on it.

5. **Analyzing Option D:**
- This option states that the common example of a liverwort is Polytrichum. This is incorrect because Polytrichum is a type of moss, not a liverwort. A common example of a liverwort is Marchantia.

6. **Conclusion:**
- After analyzing all the options, we find that only Option A is correct.

**Final Answer:**
- The correct statement is Option A: "Bryophytes can live in the soil but are dependent on water for sexual reproduction."

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