In bryophytes and pteridophytes,transport of male gametes requires

Which of the following pairs of plants does not show seed formation?

Which of the following algae is an exception regarding its life cycle?

Explain briefly the following terms with suitable examples:
$(i)$ protonema
$(ii)$ antheridium
$(iii)$ archegonium
$(iv)$ diplontic
$(v)$ sporophyll
$(vi)$ isogamy

In $Funaria$ and $Pteris$,both sperms are released near the archegonium of $Pteris$. Only $Pteris$ sperms enter the archegonium because:

Which of the following represents a correct group of Embryophyta?