Double fertilisation is exhibited by

How many and what type of male gametes are produced by the male gametophyte of $Capsella$?

Double fertilization is the fusion of:

Select the correct option regarding $PEN$.

Differentiate between the following:
$(i)$ Red algae and brown algae
$(ii)$ Liverworts and moss
$(iii)$ Homosporous and heterosporous pteridophytes
$(iv)$ Syngamy and triple fusion

Double fertilization is