GK
BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In cactus, the spiners are the modified-
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stem
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stipules
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leaves
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buds
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Explanation:
Detailed explanation-1: -Spines are also modified leaves. In cacti, spines 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.
Detailed explanation-2: -Examples: Cactus and Acacia are plants with leaves modified into spines.
Detailed explanation-3: -Glochids or glochidia (singular “glochidium") are hair-like spines or short prickles, generally barbed, found on the areoles of cacti in the sub-family Opuntioideae.
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