The presence of rhizoids in saprophytic plants is a characteristic of which group?

In pteridophytes,the germination of spores leads to the formation of:

Which of the following is considered an important step in the development of the seed habit?

Selaginella and Salvinia are considered to represent a significant step toward the evolution of the seed habit because

Given below are the stages in the life cycle of pteridophytes. Arrange the following stages in the correct sequence.
$A.$ Prothallus stage
$B.$ Meiosis in spore mother cells
$C.$ Fertilisation
$D.$ Formation of archegonia and antheridia in gametophyte.
$E.$ Transfer of antherozoids to the archegonia in presence of water.
Choose the correct answer from the options given below.

Which of the following possess vascular tissues but lacks seeds?