Question

Pteridophytes differ from mosses/bryophytes in possessing:

• A. Independent gametophyte
• B. Well developed vascular system
• C. Archegonia
• D. Flagellate spermatozoids

Answer 1

The correct option is (B):

Explanation of the correct option:

1. Pteridophytes belong to the category of cryptogams which is the only cryptogam with vascular tissues like xylem and phloem.
   
2. The well developed vascular system appears for the first time in pteridophytes when it comes to plant evolution.
   
3. Mosses do not possess the specialized vascular system.
   

Explanation of the incorrect options:

Option (A):

1. ​Independent gametophytes are present in both mosses and pteridophytes.

Option (C):

1. ​Archegonia is present in both mosses and pteridophytes.
   

Option (D):

1. Flagellate spermatozoids ​are observed in both mosses and pteridophytes.
   

Final Answer: Pteridophytes differ from mosses/bryophytes in possessing well developed vascular system.