Waec Model Questions Vol1 2025 Biology Question 33
Practice objective / multiple choice question 33 from the 2025 Waec Model Questions Vol1 Biology examination.
A desert plant can develop four independent leaf adaptations: 1. A thick cuticle that reduces water loss by 40 % (retains 60 %). 2. Sunken stomata that reduce water loss by 30 % (retains 70 %). 3. CAM photosynthesis that reduces water loss by 50 % (retains 50 %) but lowers growth rate by 20 %. 4. Leaf orientation that reduces water loss by 60 % (retains 40 %). The plant must keep its total leaf water loss at or below 10 % of that of a typical C₃ leaf. Which combination of adaptations meets this requirement while giving the highest possible growth rate, and what is the resulting relative growth rate compared with a normal C₃ plant?
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This is Waec Model Questions Vol1 2025 Biology Question 33. It is one of the objective questions from the 2025 Waec Model Questions Vol1 Biology examination.
Difficulty level: Hard .
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