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Which of the following structural features are adapted for uses other than water conservation?

Biology
JAMB 2000

Which of the following structural features are adapted for uses other than water conservation?

  • A. Succulent stems
  • B. Scales in animals
  • C. Spines in plants
  • D. Feathers in birds
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Correct Answer: Option A
Explanation

Succulents are plants with thickened, fleshy parts that store water in arid climates or soil conditions. 

Succulent stems have several adaptations that help them in ways other than water conservation, including:

  • Thermal capacity

    Succulents have a high thermal capacity, which means they can tolerate high tissue temperatures. This is because their size, density, and water content help slow radiative heat loss at night.  

  • Habitat

    Succulents can provide shelter and habitat for reptiles like lizards and snakes. The cool, moist environment of their leaves and stems can be especially important in arid regions.  

  • Shade

    Succulents can provide shade to the plant by growing straight up. This shade slows down transpiration, which helps the plant keep its water longer.  

  • Color

    Some succulents have white-green stems to help reflect sunlight and prevent overheating.

There is an explanation video available below.


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Explanation Video

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