Exam 26: Secondary Growth in Stems

As the vascular cambium continues to divide, the cambial cells:

The order of tissues in the periderm, from the center of the plant toward the outside, is cork, cork cambium and phelloderm.

How many rings of vascular cambium would be found in a tree that is 6 years old?

The genes that regulate secondary growth are entirely different from those that regulate primary growth.