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Part S: Based on this phylogenetic tree, answer the following questions: (1 Spermatophyta (Seed Plants) Gymnospermae (Gymnosperms) Gnetales- t ovalo/scale vessels porose pollen striate leaves simple SA: What is the sister group to Ephedra? 5B: Which clade have the unique character (synapomorphy) vessels porose? SC. Are there any unresolved branches/polytomies in this tree? If so, mark it/them with a star. 5D. What is the closest relative of Angiospermae (flowering plants)? SE. Mark a groupings of terminals that would be paraphyletic with a circle 5D. Give a name of a group in the tree that represent a monophyletic clade:
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1) The sister group or taxon to the clade Ephedra are Welwitschia and Gnetum. As, They are derived from the same acestor node.

2) The clade that has the unique character of vessels porose is Gnetales. They also show pollen striate character. The Gnetales consists of Ephedra, Welwitschia and Gnetum taxons.

3) There are no polytomies represented in this tree, as, no nodes have more than two descendants.

4) The closest relative of Angiospermae is Cycadophyta, as Angiospermae is the root to Cycadophyta.

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