Seed habit is first observed in some:

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(A) The evolution of the seed habit is a significant event in plant evolution.It was first observed in certain heterosporous pteridophytes,such as $Se

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Pteridophytes

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(A) The evolution of the seed habit is a significant event in plant evolution.It was first observed in certain heterosporous pteridophytes,such as $Selaginella$ and $Salvinia$.In these plants,the development of the zygote into young embryos takes place within the female gametophytes retained on the parent sporophytes.This precursor to the seed habit is considered an important step in evolution.

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