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Multiple Choice
Plants in the desert often exhibit which of the following adaptations to minimize water loss?
A
Develop thick, waxy cuticles on their leaves
B
Open their stomata during the hottest part of the day
C
Lack any specialized adaptations for water conservation
D
Increase the number of large, broad leaves
Verified step by step guidance
1
Understand the environmental challenges faced by desert plants: Desert environments are characterized by high temperatures and low water availability, so plants must adapt to conserve water.
Learn about the role of the cuticle: The cuticle is a waxy layer on the surface of leaves and stems that helps reduce water loss by preventing evaporation. Thick, waxy cuticles are common adaptations in desert plants.
Examine stomatal behavior: Stomata are small openings on leaves that allow gas exchange. Desert plants often open their stomata at night (a process called CAM photosynthesis) to minimize water loss during the hottest part of the day.
Evaluate the other options: Large, broad leaves increase surface area for water loss, which is not ideal in a desert environment. Similarly, lacking specialized adaptations would make survival in a desert extremely difficult.
Conclude the correct adaptation: Based on the information, the most effective adaptation for minimizing water loss in desert plants is the development of thick, waxy cuticles on their leaves.