Read the following five statements (A to E) and select the option with all correct statement
(A) Mosses and Lichens are the first organisms to colonise a bare rock.
(B) Seloginella is a homospourous pteridophyte.
(C) Coralloid roots in Cycas have VAM.
(D) Main plant body in bryophytes is gametophytic whereas in pteridophytes it is sporophytic.
(E) In Gymnoperms, male and female gametophytes are present within sporangia located on sporophyte.

Options

A. B,C and D
B. A,D and E
C. B,C and E
D. A,C and D

Answer

To solve the question, we need to analyze each statement (A to E) and determine whether they are correct or incorrect.

### Step-by-Step Solution:

1. **Statement A: "Mosses and Lichens are the first organisms to colonise a bare rock."**
- **Analysis:** This statement is correct. Mosses and lichens are indeed pioneer species that can colonize bare rocks and are often the first organisms to establish in such environments.
- **Conclusion:** A is correct.

2. **Statement B: "Selaginella is a homosporous pteridophyte."**
- **Analysis:** This statement is incorrect. Selaginella is a heterosporous pteridophyte, meaning it produces two types of spores: microspores and megaspores.
- **Conclusion:** B is incorrect.

3. **Statement C: "Coralloid roots in Cycas have VAM."**
- **Analysis:** This statement is also incorrect. Coralloid roots in Cycas are associated with cyanobacteria, not VAM (Vesicular-Arbuscular Mycorrhizae). The cyanobacteria help in nitrogen fixation.
- **Conclusion:** C is incorrect.

4. **Statement D: "Main plant body in bryophytes is gametophytic whereas in pteridophytes it is sporophytic."**
- **Analysis:** This statement is correct. In bryophytes, the dominant phase is the gametophyte, while in pteridophytes, the dominant phase is the sporophyte.
- **Conclusion:** D is correct.

5. **Statement E: "In Gymnosperms, male and female gametophytes are present within sporangia located on sporophyte."**
- **Analysis:** This statement is correct. In gymnosperms, the male and female gametophytes develop within the sporangia, which are part of the sporophyte generation.
- **Conclusion:** E is correct.

### Final Conclusion:
Based on the analysis:
- Correct statements: A, D, E
- Incorrect statements: B, C

The option with all correct statements is **A, D, E**.