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Represented by Only Two Living Genera, Psilotum and Tmesipteris

Question 74

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Represented by only two living genera, Psilotum and Tmesipteris , ____ resemble the extinct Cooksonia . Having no true roots or leaves, these seedless vascular plants are essentially forking green stems.


A) mosses
B) whisk ferns
C) ferns
D) club mosses
E) horsetails

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