A) Ferns and angiosperms
B) Ferns and gymnosperms
C) Bryophytes and pteridophytes
D) Pteridophytes and thallophytes
Correct Answer: B
Solution :
Vessels are absent in pteridophytes and gymnosperms (except Ephedra, Gnetum, Selaginella, Pteridium). Companion cells are not found in pteridophytes and gymnosperms.You need to login to perform this action.
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