Sporangia of eusporangiate ferns:

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

The most primitive members in which roots are not present are:

Select the incorrect statement regarding the prothallus of Pteridophytes:

To which of the following groups would you assign a plant that has a vascular supply,lacks ovules,and reproduces by means of spores?

Strobili or cones are found in: