go find out on your own
To hold water.
The skin of a cactus stem generally has a smooth papery feel. It is firm to the touch if healthy.
cactus have a hollow stem. it is where they store water and food for survival
It goes shiny and smooth.
In cactus leaves are absent. Chlorophyll are found in trunk mainly.
use conditioner, it's gonna make your hairs shiny and smooth.
A cactus stores water in its stem.
Water is stored in tissue in the stem of the cactus.
The 'spines' of a cactus attach directly to the stem of the plant.
The stem of a cactus is able to store water during rainy periods for use during a drought.
Water, dissolved nutrients, and byproductsof photosynthesis are stored in the cactus stem. The water and the dissolved nutrients are sent up into the stem from the cactus plant's roots. They're held in the stem until they can be used in the photosynthetic interaction with sunlight. From that interaction are made the energizing carbohydrates, starches and sugars that the cactus needs for such activities as flowering, fruiting, growing, reproducing, and responding to stresses and stressors.
A cactus stores most of its water in its stem or body
It isn't.... take water for example it isn't "smooth" or "shiny" but has reflective properties