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Questions  >>  CBSE XII  >>  Biology
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Which of the following characters represent affinities of Gnetum with Angiosperms and differences with Cycas and Pinus?

 a. Presence of xylem vessels and absence of archegoniab.Perianth and two integumentsc.Embryo development and apical meristemd.Absence of resin ducts and leaf venation.

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