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What may be the possible advantage occur...

What may be the possible advantage occuring out of the presence of antheridia and archegonia on the underside of a fern prothallus?

A

They are protected from direct rays of the sun.

B

Capillary water accumulates on the underside of prothallus between its lower surface and the soil surface sex organs projecting in this water can be readily fertilised by the cilliated sperms which are chemotactically attracted by the archegonia

C

The sex organs remain protected from wind

D

Nutrients manufactured by the green prothallus can radily seep downwards to the sex organs due to the action of gravity.

Text Solution

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The correct Answer is:
B
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