Q. The underground stem that has contractile roots, is
A) Rhizome
B) Corm
C) Stem tuber
D) Bulb
Explanation
Corm is a modification of stem because it bears node and internodes as stem bears. From the base of corm, arises the adventitious roots, some of which are contractile and pull new corm, down into the soil.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.