How many orders does the series Inferae contain?

How many major groups have modern researchers classified the plant kingdom into?

Thallophyta includes

The foot,seta,and capsule are parts of the ......... stage.

Read carefully the following statements:
$I.$ Funaria possesses unicellular and unbranched rhizoids.
$II.$ Gemmae are asexual buds, which originate from small receptacles called gemma cups.
$III.$ The Sphagnum plants have a magnificent property of retaining water.
$IV.$ Mosses along with lichens are the first organisms to colonise rocks.
Which of the statements given above are correct?

What do gymnosperms and angiosperms produce respectively for sexual reproduction?