From evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in
Answers
Answer:
In Pteridophyte, megaspore is retained for some times in female gametophyte, however the permanent retention is required for seed formation in Gymnosperms.
In Pteridophyte, megaspore is retained for some times in female gametophyte, however the permanent retention is required for seed formation in Gymnosperms. That's why Pteridophytes exhibit precursor to seed habit only.
Answer:
The retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in Pteridophyte.
Explanation:
The Pteridophyte retains the megaspore for a significant amount of time within the gametophyte of the female. The most necessary action is its permanent retention for the for the formation of seed which makes it exhibit the precursor as per the seed habits.