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Cooksonia Is a Genus of Very Early Tracheophyte Plants

Question 2

Multiple Choice

Cooksonia is a genus of very early tracheophyte plants.Unlike modern tracheophytes they only grew to a few centimeters in height.What feature provides the best explanation for their diminutive size?


A) They completely lacked vascular tissues.
B) They did not have stomata.
C) They consisted of only photosynthetic stems,not roots or leaves.
D) Cooksonia species were not autotrophic.

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