Answer:
I tremble at each breath of air, and yet can heaviest burdens bear.
It is worldwide, but once only a spider could weave one
Some live in me, some live on. And some shave me to stride upon. I rarely leave my native land. Until my death I always stand. High and low I may be found. Both above and below ground.
So cold, damp and dark this place. To stay you would refrain, yet those who occupy this place do never complain.
An open ended barrel, it is shaped like a hive. It is filled with the flesh, and the flesh is alive.
What is so fragile that saying its name breaks it?
Difficult
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?