First slide
Secondary Growth
Question

Arrange the following tissues of dicot stem in secondary growth in a sequence of increased perimeter. 

A. Sap wood

B. Secondary cortex

C. Cork cambium

D. Vascular cambium 

E. Secondary phloem

Difficult
Solution

The various tissues with increase in perimeter sequence are Sap wood, Vascular cambium, Secondary phloem, Secondary cortex and Cork cambium

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