A: Sperm in Bryophytes are flagellated.
R:Sperms in bryophytes move to the mature archegonia, under the effect of chemicals.

Options

A. If both As and R are correct and R is correct explanation of As
B. If both As and R are correct but R is not correct explanation of As
C. If As is correct, R is wrong
D. If both As and R are wrong.

Answer

To analyze the assertion and reason statements regarding Bryophytes, we can break down the solution into clear steps:

### Step 1: Understand the Assertion
The assertion states that "Sperm in Bryophytes are flagellated."
- **Explanation**: In Bryophytes, the male gametes (sperms) are indeed flagellated. This means they possess flagella, which are tail-like structures that enable them to swim. This characteristic is crucial for their movement in water, as Bryophytes typically reproduce in moist environments.

### Step 2: Understand the Reason
The reason states that "Sperms in bryophytes move to the mature archegonia, under the effect of chemicals."
- **Explanation**: The movement of the flagellated sperms towards the archegonia (the female reproductive structure) is guided by chemical signals. The archegonia release specific chemicals that attract the sperms, facilitating their journey towards the egg for fertilization.

### Step 3: Evaluate the Truth of Both Statements
- **Assertion**: True. Sperm in Bryophytes are flagellated.
- **Reason**: True. Sperms move towards the archegonia under the influence of chemicals.

### Step 4: Determine the Relationship Between Assertion and Reason
- The reason provides a valid explanation for the assertion. The flagellated nature of the sperm is essential for their movement towards the archegonia, which is chemically mediated.

### Conclusion
Both the assertion and the reason are true, and the reason correctly explains the assertion. Therefore, the correct answer is that both statements are true, and the reason is the correct explanation for the assertion.

### Final Answer
The correct option is: Both A and R are true, and R is the correct explanation of A.

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