Which of the following plant groups is considered the first terrestrial plants to possess vascular tissues,$xylem$ and $phloem$?

Prothallus of the fern produces

Select the incorrect statement for $Pteridophytes$.

From an evolutionary point of view,the retention of the female gametophyte with the developing young embryo on the parent sporophyte for some time is first observed in:

Which of the following is not a pteridophyte?

How many structures listed below are diploid $(2n)$ for a typical fern member?
$a.$ Indusium cell
$b.$ Stomium cell
$c.$ $NCC$ (Neck Canal Cell)
$d.$ Rhizome cell
$e.$ Sporophyll cell
$f.$ Prothallus cell
$g.$ $SMC$ (Spore Mother Cell)
$h.$ Spore
$i.$ Antherozoid mother cell