1.

Question : Seed habit first originated in

Answer»

certain ferns
certain pines
certain monocots
primitive dicots

Solution :(a) The tendency towards seed FORMATION is called seed HABIT. It was DEVELOPED in fossil gymnosperm of group Cycadofilicales (pteridosperms), i.e.Seed ferns, e.g.Lyginopteris which bears characters of cycads and ferns both, Seed habit is SHOWN by few pteridophytes like Selaginella, Marselia, Isoetes, etc. which exhibit HETEROSPORY.


Discussion

No Comment Found