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In Selaginella & Salvinia……….. Is correc...

In Selaginella & Salvinia……….. Is correct.

A

heterospry is common produces mega & microspores

B

megaspore produces female prothallus while microspore produces male prothallus

C

female prothallus/gametophyte retained on parent prothallus for variable time heterospory is most important event in seed habit

D

all of these

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