Because the thick waxy bark prevents the loss of moisture so it stops the plant dying of thirst
uadsa
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To keep it warm at night because its COLD in the desert!.
Thick
A seals outer covering is thick skin.
structural adaptations
Cacti have thick stems and skins because they need to store water over long periods of time, and the liquid would evaporate quickly in deasert conditions.
a cactus http://www.roythehandyman.co.uk
A cactus' waxy skin helps it retain moisture in desert climates.
The stem which is the thick part of the cactus plant stores food.:)
I think polar bears body covering is fur. ????????????????I think polar bears body covering is fur. ????????????????
false