BOTANY

Detailed explanation-1: -The tissue responsible for the secondary growth in woody stems is the vascular cambium. Vascular cambium is found in between the xylem and phloem in woody stems, it produces xylem to the inside of the stem and phloem to the outside of the stem.

Detailed explanation-2: -The process of secondary growth is controlled by the lateral meristems, and is similar in both stems and roots. Lateral meristems include the vascular cambium and, in woody plants, the cork cambium (cambium is another term for meristem).

Detailed explanation-3: -1: Primary and secondary growth: In woody plants, primary growth is followed by secondary growth, which allows the plant stem to increase in thickness or girth. Secondary vascular tissue is added as the plant grows, as well as a cork layer. The bark of a tree extends from the vascular cambium to the epidermis.

Detailed explanation-4: -Occurrence of secondary growth due to the activity of two laterally positioned meristems, viz. the vascular cambium and the phellogen (cork cambium) is a common feature of the gymnosperms and dicotyledons.