A) leaf
B) branch
C) epidermis
D) flower
Correct Answer: A
Solution :
Opuntia is a phylloclade (flattened swollen green stem). Ifs leaves are modified into spine i.e., leaf spine, which reduces the rate of transpiration in xerophytic habitats. Epidermal outgrowth are modified to prickles in rose. Thorn is a deep seated structure, originates as direct prolongations of the stem from hardened axillary buds e.g., Aegle, Duranta. Branch tips are modified to tendrils e.g., Vitis; called as, stem tendril.
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