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Solution


Q.

Which of the following is not a stem modification                            [2016]
1 Tendrils of cucumber  
2 Flattened structures of Opuntia  
3 Pitcher of Nepenthes  
4 Thorns of citrus  

Ans.

(3)

Pitcher of Nepenthes is a modification of leaf. In Nepenthes, the pitchers are meant for catching and digesting insects. The lamina is modified into a pitcher. The leaf apex gives rise to a coloured lid for attracting the insects.