Question

Krishna determined the age of a tree by counting its annual rings which actually are the _____ rings.

• A. apical meristem
• B. phloem
• C. xylem
• D. vascular cambium

Answer 1

The correct option is C

xylem

Krishna determined the age of a tree by counting its annual rings which actually are the xylem rings. Tree trunk growth results primarily from the xylem layers and is counted to determine the age. The tree produces large xylem cells in the spring and small cells of xylem in the summer, making it easy to note the difference between years.