Which of the following is a characteristic of Cryptogams?

Match the storage products listed under Column-$I$ with the organisms given under Column-$II$. Choose the appropriate option from the given choices.

Column $I$	Column $II$
$A$. Glycogen	$t$. Agaricus
$B$. Pyrenoids	$s$. Spirogyra
$C$. Laminarin and mannitol	$p$. Sargassum
$D$. Floridean starch	$r$. Polysiphonia

Cycas and Adiantum resemble each other in having:

Both vessels and companion cells are absent in

Which of the following series is $NOT$ included in the sub-class $Thalamiflorae$?

When the sperms of $Funaria$ and $Pteris$ are put together near the archegonia of $Pteris$,only the sperms of $Pteris$ readily enter the archegonia and reach the egg. The reason being that