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Q.
Stem of Opuntia is
Chhattisgarh PMTChhattisgarh PMT 2006
Solution:
Stem of Opuntia is phylloclade. In phylloclade, the stem having several nodes and internodes is modified into a flat, fleshy and green leaf like structure and carries out photosynthesis like a leaf and also stores food. The leaves are modified either into spines or scales to reduce transpiration.