Study the five statement (A-D) given below and select the correct statements :-
(A) The cyanobacteria are unicellualr, colonial or filamentous algae.
(B) Euglenoids are photosynthetic in the presence of sunlight when deprived of sunlight they behave like heterotrophs
(C) In phycomycetes mycelium is aseptate and coenocytic
(D) Bryophytes are plants which can live in soil but are dependent on water for sexual reproduction.

Options

A. A, B & C
B. C, D & A
C. A & B only
D. All statements are correct

Answer

To solve the question, we need to analyze each statement (A-D) provided and determine whether they are correct or not.

### Step-by-Step Solution:

1. **Statement A**: "The cyanobacteria are unicellular, colonial or filamentous algae."
- **Analysis**: Cyanobacteria, also known as blue-green algae, can exist in various forms: unicellular, colonial, or filamentous. This statement is **true**.

2. **Statement B**: "Euglenoids are photosynthetic in the presence of sunlight; when deprived of sunlight, they behave like heterotrophs."
- **Analysis**: Euglenoids are indeed photosynthetic organisms that can perform photosynthesis in sunlight. When there is no sunlight, they can switch to heterotrophic nutrition, relying on organic compounds. This statement is **true**.

3. **Statement C**: "In phycomycetes, mycelium is aseptate and coenocytic."
- **Analysis**: Phycomycetes, which are a group of fungi, have mycelium that is typically aseptate (lacking septa) and coenocytic (having multiple nuclei in a common cytoplasm). This statement is **true**.

4. **Statement D**: "Bryophytes are plants which can live in soil but are dependent on water for sexual reproduction."
- **Analysis**: Bryophytes, such as mosses and liverworts, can live on land but require water for their reproductive processes, particularly for the movement of sperm to the egg. This statement is **true**.

5. **Conclusion**: Since all statements A, B, C, and D are true, the correct answer is that all statements are correct.

### Final Answer:
All statements (A, B, C, D) are correct.

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