So it doesn't collapse when you breathe. =]
A tracheotomy is a surgical procedure in which a cut or opening is made in the windpipe (trachea).
If you are referring to plant cell walls, then they are made up of primarily cellulose and carbohydrates. Even though carbohydrates do make up cell walls in plants, cellulose (a polymer of glucose {consists of many glucose molecules}) is the primary structural component of a plant cell wall.
The cell wall, in plants, is the strong, stiff, nonliving layer outside thecell membrane. It is made of cellulose.
..............cellulose ............. final answer
Wood.
So it doesn't collapse when you breathe. =]
Size and material its made of
Celluose/fiber
for the walls, fibro and bricks and the roof is made out of curved roof tiles!!!!!!!!!!!!!!!!!!!!!!!!!!!!
a tutu is a skirt made of net or a stiff silky material that are worn by female ballet dancers
In making synthetic fiber
A Pick is generally made of medal. Most commonly steel or stainless steel but a pick can be made from any stiff material even plastic and wood.
grodi
It is not likely, but it depends on what material the walls are made out of. Mud, probably not, but tile yes.
The windpipe is composed of cartilaginous rings that resemble the flexible portion of a bendy straw.
Drywall
A tracheotomy is a surgical procedure in which a cut or opening is made in the windpipe (trachea).