Read the following statements regarding bryophytes and do as ask next to them
(A) All cells of sporophyte undergo reduction division to produce haploid spores.
(B) They play an important role in plant succession on barren rocks.
(C) Plant body is thallus like and prostate or errect and attached to the substratum by unicellular or multicellular rhizoids.
(D) They prevent soil erosion.
(E) Sex organs are multicellular. Male and female sex organs are called archegonium and antheridium respectively.
How many of the above statements is/are not correct ?

Options

A. 2
B. 3
C. 1
D. 4

Answer

To determine how many of the statements regarding bryophytes are not correct, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Statement (A):** "All cells of sporophyte undergo reduction division to produce haploid spores."
- **Analysis:** This statement is incorrect. In bryophytes, the sporophyte is diploid, and only certain cells (specifically, the sporangium cells) undergo meiosis (reduction division) to produce haploid spores. Therefore, this statement is not correct.

2. **Statement (B):** "They play an important role in plant succession on barren rocks."
- **Analysis:** This statement is correct. Bryophytes are pioneer species and help in the process of plant succession, especially in barren environments where they can colonize and create conditions suitable for other plants to grow.

3. **Statement (C):** "Plant body is thallus-like and prostrate or erect and attached to the substratum by unicellular or multicellular rhizoids."
- **Analysis:** This statement is also correct. Bryophytes have a thallus-like structure, and they can be either prostrate or erect. They are attached to the substrate by rhizoids, which can be unicellular or multicellular.

4. **Statement (D):** "They prevent soil erosion."
- **Analysis:** This statement is correct. Bryophytes help in binding the soil together, which prevents soil erosion, especially in areas where soil is loose and vulnerable.

5. **Statement (E):** "Sex organs are multicellular. Male and female sex organs are called archegonium and antheridium respectively."
- **Analysis:** This statement is partially correct. The male sex organ is called antheridium, and the female sex organ is called archegonium. However, the statement is misleading because it does not specify that the male sex organ is called antheridium. Therefore, this statement is incorrect.

### Summary of Findings:
- Incorrect Statements:
- Statement (A) is incorrect.
- Statement (E) is incorrect (due to the naming error).

- Correct Statements:
- Statement (B) is correct.
- Statement (C) is correct.
- Statement (D) is correct.

### Conclusion:
Out of the five statements, **two statements (A and E) are not correct.**

### Final Answer:
**The number of statements that are not correct is 2.**

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