why are leaves modified into spines in prickly pear
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Explanation:
Leaves of certain plants become wholly or partially modified for defensive purpose into sharp, pointed structures known as spines. Thus, in prickly pear the minute leaves of the axillary bud are modified into spines. Explanation: ... Their function is to protect the axillary bud that they bear in their axil.
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it is a modification
as prickly pear is a desert plants so to reduce water loss leave get modified into spines
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