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the formation of annual rings in dicot s...

the formation of annual rings in dicot stem mainly depends upon difference in

A

formation of unequal quantities of xylem and phloem

B

acitvity of vascular cambian due to seasonal varations

C

activity of cork cambium due to seasonal variations

D

formation of unequal quantities of sapwood and heart wood.

Text Solution

Verified by Experts

The correct Answer is:
b
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