Passage: 'In temperate deciduous forests, leaf senescence and subsequent abscission allow trees to conserve water and prevent frost damage during severe winter months.' What is the physiological benefit of leaf drop?
Answer and explanation
Correct answer: C. Conserving vital water reserves and avoiding freezing damage
- Step 1: 'allow trees to conserve water and prevent frost damage during severe winter months'. Step 2. Water conservation and frost prevention are the stated physiological benefits. Answer: Conserving vital water reserves and avoiding freezing damage. Why not the others: Deciduous trees do not photosynthesize in winter; pollinators are absent in winter; transpiration is reduced, not accelerated.
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