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Ans: (b) scutellum.
Explanation: Maize is a monocot plant.In monocots single cotyledon is called scutellum.
Ans: (b) scutellum
Which of the following is not a stem modification? (a) Tendrils of cucumber (b) Flattened structures of Opuntia (c) Pitcher of Nepenthes (d) Thorns of citrus