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Ans: (c) thick cuticleExplanation: Conifers are gymnosperms so they have no vessels and they adapt to tolerate extreme conditions because they have narrow leaves and have thick cuticle to prevent water loss.
Ans: (c) thick cuticle
Sol: Needle like leaves with thick cuticle and sunken stomata are xerophytic adaptations of conifers for tolerating extreme environmental conditions.
Which one of the following statements is wrong? (a) Algae increase the level of dissolved oxygen in the immediate environment. (b) Algin is obtained from red algae, and carrageenan from brown algae. (c) Agaragar is obtained from Gelidium and Gracilaria. ( ...