In cactus, the spines are the modified – (1) stern (2) stipulse (3) leaves (4) buds

1 Answer

Answer :

(3) leaves Explanation: Most cactus morphologists have concluded that cactus spines are modified leaves. They are wholly transformed leaves that protect the plant from herbivores, radiate heat from the stem during the day, and collect and drip condensed water vapour during the cooler night.

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