The first evolution of the seed habit occurre | vedclass

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(A) The evolution of the seed habit is a significant event in plant evolution. It first appeared in certain pteridophytes,specifically those belonging

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Pteridophyte ancestors like $Selaginella$

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(A) The evolution of the seed habit is a significant event in plant evolution. It first appeared in certain pteridophytes,specifically those belonging to the genus $Selaginella$. These plants exhibit heterospory (production of two types of spores: microspores and megaspores) and the retention of the megaspore within the megasporangium for a period,which are considered the precursors to the development of the seed habit.

Column-$I$	Column-$II$
$P$. Psilopsida	$I$. Psilotum
$Q$. Lycopsida	$II$. Selaginella,Lycopodium
$R$. Sphenopsida	$III$. Equisetum
$S$. Pteropsida	$IV$. Dryopteris,Pteris,Adiantum

The first evolution of the seed habit occurred in which of the following?

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Match the following columns:
Column-$I$ Column-$II$
$P$. Psilopsida $I$. Psilotum
$Q$. Lycopsida $II$. Selaginella,Lycopodium
$R$. Sphenopsida $III$. Equisetum
$S$. Pteropsida $IV$. Dryopteris,Pteris,Adiantum

In most of the pteridophytes,all the spores are of similar kind. Such plants are called ......

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