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More than one answer may be correct : Ma...

More than one answer may be correct : Marchantia polymorpha
1. Is dioecious
2. Possesses antheridiophores and archegoniophores
3. Lacks foot and seta in its sporophyte
4. Is heterosporous.

A

1 and 2

B

3 and 4

C

1,2 and 3

D

2 and 3

Text Solution

AI Generated Solution

The correct Answer is:
To determine which statements about Marchantia polymorpha are correct, let's analyze each option step by step. 1. **Is dioecious**: - Marchantia polymorpha is indeed dioecious, meaning that it has distinct male and female individuals. In this case, male and female gametes are produced on separate thalli. Therefore, this statement is **correct**. 2. **Possesses antheridiophores and archegoniophores**: - Marchantia polymorpha has specialized structures called antheridiophores (which bear the male sex organs, antheridia) and archegoniophores (which bear the female sex organs, archegonia). This means that this statement is also **correct**. 3. **Lacks foot and seta in its sporophyte**: - The sporophyte of Marchantia polymorpha does have a foot and seta. The foot anchors the sporophyte to the gametophyte, and the seta is a stalk that supports the capsule where spores are produced. Therefore, this statement is **incorrect**. 4. **Is heterosporous**: - Marchantia polymorpha is not heterosporous; it is homosporous, meaning it produces spores of one type that develop into gametophytes that can produce both male and female gametes. Thus, this statement is also **incorrect**. Based on this analysis, the correct answers are: - 1. Is dioecious (Correct) - 2. Possesses antheridiophores and archegoniophores (Correct) - 3. Lacks foot and seta in its sporophyte (Incorrect) - 4. Is heterosporous (Incorrect) ### Final Answers: 1. Correct 2. Correct 3. Incorrect 4. Incorrect
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