Question

Which event is considered to be precursor to the seed habit
(A) Micropore developing into male gametophyte
(B) Need of water for fertlilization
(C) Zygote developing into embryo
(D) Development of zygote into young embryo takes place within female gametophytes​

Answer 1

Answer:option d

Explanation:

Answer 2

Answer:

(D) Development of zygote into young embryo takes place within female gametophytes​ is the event is considered to be precursor to the seed habit.

Explanation:

Events precursor to the seed habit:

• Heterosporous genera include Selaginella and Salvinia, which generate two types of spores.
• Megaspores and microspores, respectively, germinate and produce female and male gametophytes.
• Female gametophytes are kept on the parent sporophytes for varying amounts of time in these plants.
• The female gametophytes are responsible for the development of the zygotes into newborn embryos.
• This occurrence is the prelude of the seed habit, which is seen as a crucial evolutionary step.