Name the peripheral and water proof dead tissue of old stem of woody trees.

In woody trees, the exchange of gases between the outer atmosphere and the internal tissue of the stem takes place through

Which of the following statements are incorrect? (i). Secondary growth usually occurs in monocotyledons. (ii). Bark refers to all tissues interior to vascular cambium. (iii). Lenticels permit the exchange of gases between the outer atmosphere and the internal tissue of the stem. (iv). Annual rings give an estimate of the age of the tree.

Name the plant tissue which is dead at maturity

Name the plant tissue which is dead at maturity.