Q. I. The $1{^\circ}$ and $2{^\circ}$ phloem get gradually crushed due to the continued formation and accumulation of $2{^\circ}$ xylem II. $1{^\circ}$ xylem remains more or less intact in or near the centre III. Secondary growth results in an increase in the length of the axis Select the correct statements
A) I and II
B) II and III
C) I and III
D) I, II and III
Explanation
Secondary growth increases the girth not length of the plant. Length of the plant increases by apical meristem
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.