Standard Science Primary 6 Interactions

Siti observed that many desert plants have thick, waxy stems and needle-like leaves. Which of the following best explains these adaptations?

A To capture more sunlight for photosynthesis.
B To allow the plant to store more air for respiration.
C To protect the plant from being eaten by animals.
D To reduce water loss through transpiration.
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Worked Solution

Step 1: Identify the environment (Desert). Step [2-9]: Deserts have high temperatures and low water availability. Step [2-9]: Waxy stems and needle-like leaves reduce the surface area and permeability, preventing water loss.

Correct answer: To reduce water loss through transpiration.

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