NEET BIOLOGY

Detailed explanation-1: -The annual rings (indicated by the numbers) are produced by each year’s growth of xylem, with the oldest ring in the center. This is why you can determine the age of a tree by counting its rings.

Detailed explanation-2: -These rings represent the age of the tree as they are formed every year in the roots and stems of the trees and shrubs. Complete answer: Annual rings are also known as growth rings present in the cross section of the stem and roots of the plants.

Detailed explanation-3: -The cambium cells on the inside become the xylem, a system of tiny tubelike cells that carry the tree’s water supply. These xylem layers give us the annual rings. As spring begins, new cells are added quickly, and the tree increases in diameter.

Detailed explanation-4: -The light-colored rings represent wood that grew in the spring and early summer, while the dark rings represent wood that grew in the late summer and fall. One light ring plus one dark ring equals one year of the tree’s life.

Detailed explanation-5: -A layer of wood formed in a plant during a single period of growth. Growth rings are visible as concentric circles of varying width when a tree is cut crosswise. They represent layers of cells produced by vascular cambium. Most growth rings reflect a full year’s growth and are called annual rings.