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Select one of the following pairs of imp...

Select one of the following pairs of important features distinguishing Gnetum form Cycas and Pinus and showing affinities with angiosperms:

A

Embryo development and apical meristem

B

Absence of resin duct and leaf venation

C

Presence of vessel elements and absence of archegonia

D

Perianth and two integuments

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The correct Answer is:
C
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