Which medium is required for the transport of gametes in Algae,Bryophytes,and Pteridophytes?

Which one of the following is wrongly matched?

Bryophytes differ from pteridophytes in

What is the main difference between flowering and non-flowering plants?

$A.$ In $Volvox$,the zygote undergoes meiosis to form four haploid cells immediately before germination.
$R.$ $Volvox$ exhibits a haplontic life cycle.

How many orders are contained in the series Calyciflorae?