A. phellogen and phelloderm
B. phellogen and procambium.
C. vascular cambium and phelloderm
D. vascular cambium and phellogen
Correct Answer: Option D
D. vascular cambium and phellogen
A. phellogen and phelloderm
B. phellogen and procambium.
C. vascular cambium and phelloderm
D. vascular cambium and phellogen
Correct Answer: Option D
D. vascular cambium and phellogen
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