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- #Structural Organisation in Animals and Plants
Which of the following is completely secondary in origin
Option: 1
Vascular cambium
Option: 2
Phellogen
Option: 3
Marginal meristem
Option: 4
All of them
Answers (1)
Cork cambium or phellogen is the secondary meristem that develops generally from the collenchymatous cells of hypodermis, sometimes from the cells of the epidermis (apple), pericycle (Cimatis), phloem (vitis). It is completely secondary in origin.
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