A) antheridia and archegonia on lower surface
B) antheridia and archegonia on upper surface
C) antheridia on upper surface and archegonia on lower
D) antheridia on lower surface and archegonia on upper surface
Correct Answer: A
Solution :
Prothallus of fem is gametophyte and formed from spores. It is attached to soil by unicellular rhizoids developed from posterior part of ventral surface. It bears Sex organs (male-antheridia and female-archogonia) on the ventral or lower side.
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