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(A) In pteridophytes,the main plant body is a sporophyte,which is differentiated into true root,stem,and leaves. These organs possess well-differentia

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Sporophyte

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(A) In pteridophytes,the main plant body is a sporophyte,which is differentiated into true root,stem,and leaves. These organs possess well-differentiated vascular tissues. The sporophyte is diploid $(2n)$ and represents the dominant phase in the life cycle of pteridophytes. The gametophyte,known as the prothallus,is small,inconspicuous,and multicellular,representing a much shorter phase in the life cycle.

In pteridophytes,the main plant body is .........

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