Multiple Choice
Cooksonia, a member of the phylum ______, is the oldest known ______.
A) Psilotophyta; fern
B) Rhyniophyta; vascular plant
C) Rhyniophyta; protracheophyte
D) Zosterophyllophyta; vascular plant
E) Zosterophyllophyta; protracheophyte
Correct Answer:

Verified
Correct Answer:
Verified
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