Q. Consider the following statement regarding heterospory I. Genera like $Selaginella$ and $Salvinia$ which produce two kinds of spores, macro (large) and micro (small) spores, are known as heterosporous II. The megaspores and microspores germinate and give rise to female and male gametophyte respectively III. The female gametophytes in these plants are retained on the parent sporophytes for variable periods IV. The development of the zygotes into young embryos takes place within the female gametophytes V. This event is a precursor to the seed habit considered an important step in evolution
A) I, II and III
B) II, IV and V
C) III, IV and V
D) I, II, III, IV and V
Explanation
All statements are correct
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.