Q. Which one of the following is a xerophytic plant in which the stem is modified into the flat green and succulent structure?
A) Opuntia
B) Casuarina
C) Hydrilla
D) Acacia
Explanation
[Solution from source] Opuntia is a desert plant whose stem is flattened, green, fleshy and photosynthetic (a phylloclade), while its leaves are reduced to spines. Hydrilla is an aquatic plant, and Acacia and Casuarina do not have succulent flattened stems. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.