Which of the following is considered an impor | vedclass

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(A) The evolution of the seed habit is a significant milestone in plant evolution. $1$. Heterospory,the production of two different types of spores (m

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Heterospory

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(A) The evolution of the seed habit is a significant milestone in plant evolution. $1$. Heterospory,the production of two different types of spores (microspores and megaspores),is considered the precursor to seed development. $2$. In heterosporous plants,the megaspore is retained within the parent sporophyte for a variable period,which allows for the development of the female gametophyte and subsequent fertilization and embryo development. $3$. This retention and nourishment of the embryo by the parent plant is the fundamental basis of the seed habit. Therefore,heterospory is the correct answer.

Which of the following is considered an important step in the evolution of the seed habit?

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