In bryophytes,vegetative reproduction occurs through which of the following?

In mosses,the second gametophytic stage is the leafy stage. Consider the following statements about the leafy stage:
$I.$ The leafy stage is produced from the secondary protonema as a lateral bud.
$II.$ They consist of upright,slender axes bearing spirally arranged leaves.
$III.$ They are attached to the soil through multicellular rhizoids.
$IV.$ This leafy stage bears the sex organs.
Which of the statements given above are correct?

Where are the antheridia and archegonia situated in moss?

In the archegonium of a moss $(Funaria)$ plant,the number of neck canal cells is:

Bryophytes are called the amphibians of the plant kingdom because:

Which bryophyte is known as peat moss?