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Leaves become modified into spines in :-
Options
(a) Pea
(b) Onion
(c) Silk Cotton
(d) Opuntia
Correct Answer:
Opuntia
Explanation:
In Opuntia, leaves become modified into spines to avoid transpiration so as to save water for desert adaptation. The stems of this plant appear like – leaf, termed as- phylloclades which perform the process of photosynthesis.
