The cork cambium, cork and secondary cortex are collectively called
The cork cambium, cork and secondary cortex are collectively called
(a) phellogen
(b) Periderm
(c) phellem
(d) phelloderm
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Correct option (b) Periderm
Explanation
The penderm is a secondary protective structure and is made up of cork cambium (phellogen), cork (phellem) and secondary cortex (phelloderm).
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