A: Events precursor to the seed habit are see | vedclass

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(A) In pteridophytes like $Selaginella$ and $Salvinia$,which are heterosporous,the female gametophytes are retained on the parent sporophytes for vari

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Assertion and Reason both are correct and Reason is the correct explanation of Assertion.

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(A) In pteridophytes like $Selaginella$ and $Salvinia$,which are heterosporous,the female gametophytes are retained on the parent sporophytes for variable periods.The development of the zygotes into young embryos takes place within the female gametophytes retained on the parent sporophytes.This event is a precursor to the seed habit,considered an important step in evolution.Therefore,both the Assertion and the Reason are correct,and the Reason provides the correct explanation for the Assertion.

$A$: Events precursor to the seed habit are seen in some members of pteridophytes.
$R$: Development of the zygotes into young embryos takes place within the female gametophyte.

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$A$: Events precursor to the seed habit are seen in some members of pteridophytes.$R$: Development of the zygotes into young embryos takes place within the female gametophyte.